Paul, The 635 has an 854x480 4.5 inch screen. How does the usable screen size compare to the 520's 800x480 4.0 inch screen?
My wife and I have both been using the 520 for a while and have experienced none of the problems you site. Operator error?
Here is a great topic for an article and inclusion in the book:
Why can't you can get to bing.com/news on IE on the windows phone? It always throws you onto the general Bing site with...
I have been waiting for your review of how the pen works. Not for the artist, but for the regular user who will be taking notes that include equations and technical figures....
If you are an engineering or science student, "taking notes" with only a keyboard doesn't cut it. Having the ability to write equations and figures is essential.