I had the opportunity to join Microsoft Research and this year's Interns at a recent XAPfest event (a regular internal Windows Phone development event) and give a performance talk for Mango / Tango (i.e. WP 7.x) - here's hoping it's the last one before we move on to Windows Phone 8!

To check it (and my bad hair day) skip to 1:23:30 at http://research.microsoft.com/apps/video/default.aspx?id=168593&l=i or listen from the start if you're new to Windows Phone development in general for a great overview from Shawn Henry.