Currently Being ModeratedMar 30, 2013 4:55 AM (in response to neoind)
Connect to computer, back up, transfer purchases, sync.
Disconnect - erase all settings
Connect, restore from back up, do not sync.
Sign in to ipad without enabling icloud or signing into apple id - (skip that step.)
Try to sign in to facetime/imessage.
Currently Being ModeratedMar 30, 2013 5:53 AM (in response to neoind)
Using FaceTime http://support.apple.com/kb/ht4319
Troubleshooting FaceTime http://support.apple.com/kb/TS3367
The Complete Guide to FaceTime + iMessage: Setup, Use, and Troubleshooting
Troubleshooting FaceTime and iMessage activation
Using FaceTime and iMessage behind a firewall
iOS: About Messages
Set up iMessage
Setting Up Multiple iOS Devices for iMessage and Facetime
FaceTime and iMessage not accepting Apple ID password
Unable to use FaceTime and iMessage with my apple ID
For non-Apple devices, check out the TextFree app https://itunes.apple.com/us/app/text-free-textfree-sms-real/id399355755?mt=8
How to Send SMS from iPad