Heh, I remember when Android first launched, I made a little calculator app for it so it was ready on launch day. Few months later, I got a completely plain text message from some random email address, saying something like "congrats, your app was one of the first 10,000 apps on the Play Store, to say thank you we would like to send you a Nexus One. Please fill out your details on this page <link to some random spreadsheet>". I immediately thought it was a scam, there was absolutely nothing identifying it as coming from Google, nothing that would give me any confidence whatsoever. But, I googled it, and yep, Google has announced they would be giving out phones to early developers - so I filled out the form and without ever receiving any further communication from them, a Nexus One arrived in post couple months later. It was incredibly bizarre, and in hindsight I wonder if they did it on purpose to limit the number of phones they needed to send out.