I'll be walking into the show in about 12 hours from right now... I haven't been to PMA in years, and I'm STOKED to see the new goodies... (Can you say 'EOS 1D Mark II'? How about 'PowerShot Pro1'? I know I can!
Also, //www.dpreview.com has a section on what's being introduced at PMA. A LOT of cool innovations, both digital and silver.