AT&T BlackBerry 8820 Launch DateNew rumors from Engadget today suggest a September 15th launch date for the BlackBerry 8820 on AT&T.

The 8820 adds Wi-Fi to the BlackBerry 8800's standard specs. Great news, except for the accompanying rumor that the AT&T 8820's Wi-Fi will be locked unless you subscribe to an AT&T plan. The 8820 will also sport extended battery life - up to twice that of Verizon's 8830!

With the rumored launch to be less than a month away, it's likely we will see some official news from RIM and AT&T any day now. 

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