Seems great! I'm definitely giving this a try.
700 Wii Points confirmed!
http://wii.ign.com/articles/868/868645p1.html
Some rough specs:
It's a four-player compatible "sci-fi shooter" designed from the ground up for Nintendo's download service and as you'll see in our exclusive video trailer below, it already looks better than many retail Wii titles. High Voltage's 3D engine procedurally generates the space track that you'll whiz through in your spaceship – or in other words, the fractal-like geometry and particle effects you see whirring around in the background are being created dynamically. The result is that the title includes 50 levels of space track in a file size smaller than 40 megabytes.
What we haven't mentioned yet is that you can control your ship any way you like using the Wii remote or the Wii remote and nunchuk. If you prefer motion controls, there's waggle and if not, you can go the more traditional route – analog stick and good-old-fashioned button presses. The multiplayer mode can be competitive or cooperative depending on the actions you make.
Gyrostarr seems to run in both 480p and 16:9 widescreen modes and features an electronica-influenced soundtrack that is well matched to the on-screen action. The WiiWare launch title will cost 700 Wii Points ($7) -- a good bargain. With games like this, LostWinds and World of Goo set to debut with or shortly thereafter the launch of WiiWare in America, we couldn't be more excited about the forthcoming service.
There's a bit more in the actual article about Power-ups and stuff, including a trailer. Overall, I'm looking fwd to this!