Hi Diane
My apologies for this delay. Here is my point wise reply.
You say the tents are used only for Hajj, so does that mean not for Ramadan? Do all visitors stay in hotels, then?
Yes the tents are used only during the Hajj Day 1, 3, 4 & 5 (and in certain cases by some people on day 6 - if they have not completed all the rituals of Hajj by day 5).
Earlier there were no hotels or permanent residences in Mina. The only permanent buildings in Mina were mainly the Al Khaif Mosque plus the administrative, crowd control, utilities, fire control buildings and sacrificial meat processing plant etc.
During my recent visit in May 2009 I didn't see any residential buildings however after reading your queries I checked the photographs taken by me at Mina and one photo revealed a group of 6 multi-storey buildings.

I wish I had noticed these buildings then. As per
Panoramio these are hotels. I called one of my relative last night who was in Makkah during Ramadan this year and he also says that to his best knowledge there are no hotels in Mina. I will check this further and will revert back as soon as I get some info.
After completion of Hajj the only activities which go on in Mina are general cleaning, maintenance, repair, renovation or fresh construction in preparation for next Hajj.
Regarding the massive gathering of Moslem in Makkah during the Month of Ramadan - as per Quran, during one particular night of Ramadan, when the Quran was revealed, Allah opens the gates of mercy.
The Quran says: "
Surely We revealed it (the Holy Quran) on the grand night. And what will make you comprehend what the grand night. The grand night is better than a thousand months. The angels and Jibreel (Gabriel) descend in it by the permission of their Lord for every affair, Peace! It is till the break of the morning." (97:1-5).
However no one now knows the particular night when this happened and as per tradition it is either 19th, 21st or 23rd of Ramadan. The night is called "
Lailatul Qadr": Night of Power, Night of Destiny or Night of Majesty.
Moslem believe one must spend these nights in prayers and obviously the best place to offer prayers is in the Holy Mosque at Kaaba. Hence Moslem from all corner of the World gather here. This gathering is not mandatory like Hajj.
Mina, therefore, has no role to play during Ramadan and about 2 million people who gather in Makkah during Ramadan, stay either in hotels or in hired rooms. It is source of income to many local families who vacate their homes during Hajj and Ramadan and give it out for rent during this period. It is quite common for 6-8 persons to share a room and use common toilets/bathrooms.
Is Mina (or Mena) arranged so that nationalities are together in sections? (Makes sense - human beings naturally divide themselves this way.) One Pano shows a sign saying, "Berbers" in front of a section of tents. Another section had a flag of Pakistan flying in front.
You are very correct. Generally the tents are nation wise. As a part of proper management Saudi's have appointed several agents to look after the needs of the pilgrims during their stay in KSA in general and during 5 days of Hajj in particular. Each main agent is allocated areas in Mina. Each agent has sub-agents and sub-sub agents who are made responsible to look after a group of people. It is they who arrange for the accommodation, transportation and food during Hajj. On reaching KSA each pilgrim is given a metallic band with agent/sub agents name and code so that in case he is lost his group can be traced quickly. Remember people come from all corners of earth, speaking all sorts of languages and a many of the pilgrims don't even know how to read or write. The sub-sub agents are therefore some one who knows the language of that particular group.
What is the "Jamarat" shown under construction at Mina? Is it entirely for pedestrian traffic, or does it serve another purpose?
"Jamarat" basically means pillars. These pillars symbolise the place where Satan tried three times to mislead and divert Prophet Ibrahim's (Abraham) mind from his goal of sacrificing his Son Ismail but each time Prophet Ibrahim drove him away by pelting the Satan with stones.
As a part of Hajj rituals, the three pillars are required to be pelted by pilgrim during the 3 consecutives days they spend in Mina. (Days 3, 4 & 5). This is most dangerous part of Hajj and there have been many cases of stampedes and deaths here. What you see in GE is a pedestrian bridge known as "Jamarat Bridge" constructed to divide/divert the crowd into multi-levels. It is used only and only for these 3 days.
In mid sixties a two tiered bridge was made there with three conical openings for stoning the pillars which were extended till the upper level. The pilgrims could throw the pebbles either from the ground floor or from the upper floor through the openings. After a tragic mishap in 2004 a
scientific study of crowd control was carried out and based on these studies a 5 tier bridge is already functional. I believe it will ultimately be raised to 9 tiers.
There is an informal camping area in Mina with small, striped tents, which I have placemarked. (See below, also see the Pano to the NW.) Are those the "affordable" accomodations, or for a specific group?
The small striped tents that you have pointed out appear to me as the construction material/machinery/offices etc. These are too close together to be tents. When I visited some construction activity was going around. Here is a cropped of part of a photo I took.

At the time of GE imagery probably much more construction activity may have been going around near the Jamarat Bridge.
The tents are generally of uniform design and catering to 10-12 persons each and are provided with desert coolers. The tents for VIPs may be same but these may be provided with air-conditioners and may be accommodating lesser persons. This needs to be checked.
I will explore all this further and will try to obtain more first hand information. Till then this is all the info I have on your present set of questions. If you want any more info/clarification please feel free to ask.