We love leaked documents, particularly when they pertain to handset releases - and another one has been spotted in the wild.  A tipster has leaked a spreadsheet to Engadget Mobile detailing major device launch dates for Verizon Wireless and AT&T.  Based on the intel, the E71 is headed to AT&T on April 1st, whereas the LG Zenon (as opposed to the original 'Xenon' spelling) is slated for launch on April 10th.  As of right now, no one quite knows what the "Jackfrost" is, except that it's supposedly launching on March 29th.  On the Verizon side, the Nokia Intrigue 7205 is scheduled for a March 15th launch.  As we covered last week, the Palm Treo Pro is still on track for a March 15th release.

Though the tipster didn't confirm which retailer the document was for, the various SKU's seems to fall in line with one big box retailer...we'll leave the guessing to you, though.

Source: Engadget Mobile