Get your developer preview edition from Flock.com
Here’s my short review of Flock after trying it out on several computers (Mac & Windows). Note that I have to be open-minded about it since it’s effectively still beta. On the whole, I love the integration of del.icio.us, flickr, and ability to quickly work with images and web services straight with my blog within Flock. I literally drag and drop images and links from any site into my blog post and away I go publishing it… it’s convenient. The idea of setting it to have no local bookmarks and instead have everything saved on del.icio.us instead is very powerful. If you don’t mind the lack of privacy (perhaps future versions let you set public or private modes), this means that any browser on any computer you use will be able to grab whatever bookmarks you have (since it’s on your del.icio.us account). That said, I hope to see Flock grow.
Here’s a better review of Flocks capabilities.