Well worth the upgrade.
Also VS2010 is worth looking at.
Windows Mobile is going to go through some significant changes this year too. :D[/quote:60cfc25613]
Make sure you get the hotfixes. I upgrade to vs2008 recently at work and i gotta say it was super unstable. Crashing on break points, losing break points, random shut down and various other problems. Most of which were fixed by the hot fixes. So get them ;)