The .NET 2 support for our ASP.NET AJAX controls has entered its Extended Paid Support phase as of Q1 2011 (see this blog post
for more info). For .NET 2 applications you can use either the previous release (Q3 2010 SP2) or build the source code of the controls against .NET framework to produce assemblies for this version.
I am attaching the 2010.3.1317.20 trial version of our AJAX controls to this post in case you would like to use it.
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items