Dear All,
rollup update 5 have excellent new features which you will like that
1. Whats new (same like facebook)
2. follow the entities / users inside crm
3. offline client enhancements
4. subgrid with good pane showing
for more see this ..
http://blogs.msdn.com/b/crm/archive/2011/10/25/update-rollup-5-for-microsoft-dynamics-crm-2011.aspx
