I have had a G1 for one year and the OS is fine for basic operation and some handy apps, but one thing it has against it is a very inefficient layer that is a bite code java layer translation.

This is about as efficient as Java running on top of a desk top OS, but with less system resources to compensate for the overhead and clock cycles.

Due to the java layer, forget trying to create video codecs or something as simple as an audio EQ with Android. Unless part of the framework, they would beat the CPU to death. A good example is Coreplayer. The dev team basically abandoned their efforts because the overhead is too much with Android.

Maemo FTW!