These are all decent suggestions, but since you mentioned that this is a "dev" site, I'm wondering why not use something like github.com to do hosting for your project rather than google code because of the critical mass of collaborating developers that github seems to have over google code.
Github also has the ability to host a blog through github pages (and files up to your storage limit). Granted, it's definitely not as easy as wordpress or blogger, but you get distributed version control code hosting through git, an easy way to track issues/milestones and a wiki for any manuals or notes you want to provide. Google code does this, but it Github offers, I personally believe, a strong "dev" community. Also the ability for other developers to start hacking alongside you is really empowering for your project.
If you checkout
www.hacknite.com, you will see a Jekyll blog that I host on github.com and you can see it's repository structure at
https://github.com/hacknite/hacknite.github.com. This should give you an idea of how it works.
Ultimately, you should choose what best fits your goals, but I thought you might need some more input that just blogger and google code.
Best of luck on your project,
fozze