Amazon smartphone imageThe mega-retailer appears ready to jump into the market on June 18 with an Android-powered device made by Foxconn, Bloomberg reports. Amazon seemed to tip its hand today on Twitter: One tweet includes a picture of what looks like the corner of the back of a smartphone with a link for people to request an invitation to a June 18 event in Seattle with company founder Jeff Bezos. Another has a video showing people looking down at an unseen device in their hands that appears to follow their eyes as they move side to side. “Find out what these Amazon customers are talking about,” says the tag line.

Our colleagues at BGR have reported that an Amazon smartphone likely will feature a 3D software interface — no glasses needed — with 4.7-inch 720p display, Qualcomm Snapdragon processor, and 2GB of RAM. It also is expected to have a 13-megapixel rear camera as well as a front-facing one for video calls. It could also have four additional cameras on the front for 3D effects. The device is expected to ship in September. It would intensify Amazon’s rivalry with Apple. Both sell ebooks, movies and music. The e-retailer’s Kindle competes with Apple’s iPad, and its Amazon Fire TV vies with Apple TV.