I got this in the mail yesterday (3/28/11) from Sprint and for me its a Pre3.
Is this a hint? if not, why the promotion of a Pre3?
Who else got this Sprint Connections thing in the mail?
It's a Pixi.
The Pre 3 would not have the carrier branding on the front, it would be on the back mirror like the Pre. Also remember, the Pre 3 has a front facing camera. There doesn't appear to be a front facing camera on that phone.
Sorry to bust the bubble. I also want to be optimistic about the Pre 3 landing on Sprint. Unfortunately, that pic does not appear to be that of a Pre 3.