I have just got a shiny new phone and I spent most of my evening last night going through the Android marketplace installing some of the apps I had on my previous phone, and finding some new ones to try out. Here are some that I find useful which you may not have come across.
Open Picasa Wallpaper is a new one for me, but it might just be my favourite. I have a folder on my computer where I save images that I would like to use as my desktop background, and I have a program running that chooses a random one every so often. I thought it would be cool to have a similar set up on my phone too, using the same photos if possible so I only have to add images to a single folder.