I've ablsolutely notice this problem. If you use the phone in landscape mode for anything (web, mms, whatever) and hit the home and/or power button before reorienting the phone to portrait mode, the next time you hit the power button the phone will initially open in landscape mode for a second before realizing that it needs to switch to portrait. It can be QUITE annoying! I'm hoping for a Froyo update soon to fix this and it's other quirky issues! Another thing that I've noticed is that my phone is much slower at opening up and scrolling through pics or vids saved in my gallery.