Hi, I have just made available a tumblr style theme called Tumbled.
I have tested it in Safari and Firefox on the Mac, and Internet Explore 6 and 7 plus Firefox on the PC. Everything seems to work fine, although there is a slight discrepancy with the navigation in IE 6.
A preview, with fill instalation instruction and download link can be found on my blog here: Tumbled - A WordPress Theme.
Thoughts, comments and suggestion are more than welcome.