According to a recent survey of IT managers by Computerworld magazine, 45% of enterprises support 3 or more mobile OS platforms, while 21% support 4 or more .
We wouldn't lean on earlier versions of Android, regardless of what features you like -- the interface rewrite cuts off support for OS releases before Android 3.2.
The Groxis search tool loads onto a PC as a Java applet (it doesn't support Mas OS 9.x), and helps users quickly search for the right product from what works out to be millions of combinations of carpet tile.