The phone seems to be called "The Other Half" -- or at least that's the working title for now -- and judging from Jolla's Facebook page it consists of a colorful plastic case, available in various shades including orange or green, which hooks onto the main chassis containing a 4.5-inch display (of unknown resolution), dual-core processor, microSD expansion with 16GB onboard, a "4G" modem, user replaceable battery and an 8MP rear camera.
For your hard-earned (but yet-to-be-determined) money, you'll get pretty much everything you could possibly want, spec-wise: 10Mbps HSDPA and 2Mbps HSUPA, 8 megapixel cam with image stabilization and LED flash, 3.5mm headphone jack, a 4-inch 800 x 400 display (a first at this resolution for a production Android device), AGPS, and microSDHC expansion.