There are a number of nice enhancements added to the Shape2Earth Beta 2 release.

Optimized Speed
Shape2Earth has been optimized and is much faster when writing KML.

Query Attribute Data
Users can query GIS attribute data using keyword inputs, can sort fields, and can zoom to selected features in Google Earth. This is very helpful for large datasets, and for polygons that are not selectable in Google Earth.

On-The-Fly Reprojecting
Users no longer have to reproject their data to WGS84 before converting. Shape2Earth can now re-project on the fly from the original projection to Google Earths projection.

Enhanced Point Options
Users have a better selection on which graphics to use to represent point features. They also have the option of changing the size and color of a point when the mouse hovers over it in Google Earth. Similarly, users can set up the KML so that the attribute used to name the feature is only visible when the point is hovered over (see below).

Improved Interface
The Shape2Earth interface has been compacted, with tools being moved from the Form to a toolbar on the top. This helps when people want to interact with Shape2Earth and Google Earth at the same time. The ability to keep the Shape2Earth Form on top of Google Earth all of the time has been added to the options menu.