Cool feature, though if you hit cancel on that screen it keeps asking you over and over. Any way to choose which address you want to send from, like with the web client? That would really round out the paper wallet functionality I think.
EDIT: Also, why not allow your watch only addresses to be used with the 'request bitcoins' feature? I'm also not sure about 'active' addresses and such, because that terminology is not used on the web client. Is it necessary? My watch only addresses appear on the 'sending addresses' tab, even though they're addresses I own. This seems weird to me. However I could always request bitcoins to an active address and then send them manually to one of my paper wallet addresses, but it'd be cool if it supported your paper wallets directly

my phone camera is better able to scan QR codes than my webcam is.