Star Wars Planet sets
I bought them at my local Argos (see below) this morning. As you can see, the planet sticks out of the box and apart from it, the only other thing in the box is the instructions. The parts are all in the planet, which is 11 studs diameter. It splits into two identical halves to reveal the parts inside.
The Naboo pilot minifig is the same as that in 7877. The Starfighter itself is pretty good though and very 'swooshable'.
The only unique piece in the set is a printed 4x4 tile with studs.
Once built, the Starfighter sits on a small display stand and a couple of pieces are provided such that the planet can be stood up, or hung from the ceiling.
These are quite expensive at £9.99 (something like US$10 - $12 as I estimate) but bound to be collectable. I would recommend buying these as soon as they hit the shops, not because they'll sell out quickly, but because the planet is likely to become scratched and damaged once it's been languishing on the shelf for a while.
The first three are labelled 'Series 1' and there's another three out in the summer. No doubt more will follow in subsequent years.
I've posted more pictures on flickr: