At my Tech.Ed talk this year, I challenged developers to give up using Visual Studio for 10 days and use just Expression Blend for all their UI work. At the end of the period, I asked people to send me their feedback so that they could win an MSDN subscription.
Well, I am going to pick the winner on the 15th – ie. 15/09/2010 – So, if you haven’t replied to me, then be quick 
Send mail to Mahesh(dot)Krishnan at Readify(dot)net
