As promised, Google has released their Software Development Kit (SDK) for their new Android mobile platform today.  They’ve also put up a series of new videos which give a deeper introduction to Android than we got last week.

There’s plenty of detail on architecture and APIs and real techie, developer stuff – but there is also this Demo video, that shows off Android on a couple of prototype devices.

Some quick things that caught my eye on the demo are:

• Lots of mention of 3G data speeds – wonder who that’s a dig at
• Happy on a variety of screen sizes
• Also lots of controlling the screen with just a finger
• Quake looked pretty good
• Prototypes still seemed to require several hardware buttons along left and right side of the bigger device
• $10 million to be doled out to application developers who come up with best / most innovative Android apps – anybody wanna become a mobile developer now?

Pretty interesting video, and some of the others in the series are as well.  It sure becomes clear that they’ve been at this for a while – and are going to be making a big push in the mobile space.

Related posts:

1. Gphone is Android, And It’s Not a Phone, It’s a Mobile Platform
2. Google Android: Because Some Developers Are More Equal Than Others
3. Android Partnership = Verizon + Google
4. Mobile Platform Wars – Blackberry Ups The Ante
5. Google patches Android security flaw!