4.0 was released last week - on Friday and I recommend to show this edition in your presentation. If you want to make your presentation, please let me know and I will give you some directions.
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?
Telerik Public Issue Tracking
system and vote to affect the priority of the items