Can not sign in at old device.

[yamori813]

I try to make ios4 appricaion used api. But I can't sign in because of not enable login button on mobile safari.

Also Nexus One(Android 2.3)  browser not enable login button.

[Greg-DB]

iOS 4 and Android 2.3 are both relatively old, so their browsers unfortunately aren't supported on dropbox.com. That means that the Dropbox website, including the app authorization page and login, won't work on them. I'm afraid I don't have a good solution to offer for this.