iIt's been released officially. The 630 is outNO....Nobody knows yet. Not before official release of WP8.1 I believe!
iIt's been released officially. The 630 is out
Officially, its already been releasedBut officially the updates starting date isn't until mid-June (I believe I recall the 22nd).
Contact them & ask: WhatsApp :: Contact
If they get bugged by enough Windows Phone users, they'll have no choice but to push out an update.
Yes. The official GA happens when they upload the final OS (firmware and all) to their servers or when the support lifecycle starts. The phone is RTM because manufacturers can then install it and test on their new phone designs. That's how we are available to access the dev preview.