Android's purpose is to establish an open platform for developers to build innovative mobile apps.
I think some people miss the point. Here's the first paragraph on the Android compatibility page:
"Android's purpose is to establish an open platform for developers to build innovative mobile apps." -- http://source.android.com/compatibility/index.html
It's not an OS nor a Phone. It's a dissident manifesto for creating a whole kind of mobile device.
It's basically saying, here's the common framework/platform/environment Android stands for, go take your own Linux kernel (Archos 7HT has an Ubuntu based kernel), take the Dalvik VM code, take the base/zygote code, cross-compile it, and make it run. Here's the SDK so you can build your own apps on your own forked platform.
It's aspiring for the holy grail, it's a big goal. And it's something left to be proven. There's a lot of promise for all kinds of mobile devices based on Android coming out in the next one year. Which will give us an idea of what kind of future Android aspires to have. And if it is able to execute, which is important.