Update (12-3-09): In a statement issued a few minutes ago, Verizon acknowledged a BOGO offer, however it is for the Droid Eris only. With the purchase of a Motorola DROID or an HTC Droid Eris, customers can receive a second HTC Droid Eris for free. Apologies for the confusion!
Original Posting: Phandroid is reporting that Verizon Wireless corporate locations are offering a BOGO deal on the Motorola DROID and HTC Droid Eris. Available to both new customers and those that have already signed up, customers that purchase two new lines of service can obtain the deal. For those that have already purchased the DROID, be sure to return to the same store that you purchased it at for the BOGO deal. The DROID is $199.99 after a $100 mail-in rebate at Verizon Wireless corporate stores.
The e-mail flyer just came through to Verizon employees, so I'll update the post with an image as soon as possible.