At last I have the birthday present of my dreams! My hubby got me an HTC Desire, (woohoo!) which arrived yesterday and I am in a right state of noobiness!
I couldnt send a music file to my sister using bluetooth but I havent read the whole manual yet.
Just in time for the object of my desire, Processing have done a beta release of an Android plug in. Although the export application tool isnt finished, you have access to an Android emulator and you have the option to use your android phone when its plugged in to the USB of your PC. (Havent tried this coolness yet though, and phone is charging...)
I wrote a lottery application a little while ago which just chooses some random numbers and places them on the balls on the display. I changed some of the display variables and the app was up and running on the Android emulator in less than half an hour. Choosing Export generates an unsigned apk file. You can then sign it with your private key(I use the key tool in the Java SDK to do this) When they finish the Android plugin your Android sketches will be signed automatically.
Processing is really so easy to use, the same code can be used with very little changes for a web page, desk top app, theres a mobile version and now it even does Android. You can write in pure Java and use Proessing's many graphic/sound/video/etc libraries to make development easier.
Ive also been using Android in Netbeans and trying out the DroidDraw application but I've still a great deal to learn!