The only options are plug it in and use Minimal Fastboot and ADB to get adb and use commands to disable the lock, or if you know the password to the Gmail account you can use the "Forgotten password" option after putting it in incorrectly a certain number of times.
Current Device: ATT Samsung Galaxy S4 (i337)
Droid Bionic (GSM Hacked)
HTC Inspire 4G (Desire HD)
HTC Dev Phone 1 (Dream/G1)