I'm currently working on some small Android project called Bloggeroid.
Bloggeroid is small and simple Blogger client. Currently it can only publish posts with multiple images to any blog connected to any Google Account (of course you can always send post without images ;-)).
Currently it has only about 34kB, so all G1 users should be happy ;-)
In comparison to more than 3MB of other solutions available on Android Market it isn't bad result ;-)
Anybody interested? ;-)
If you are interested here is link to APK file :-)
And movie showing how it works [this was done with older version, texts in presentation are in Polish ;-)]