If you want to have nightly updates for Google Chrome like in Firefox Minefield
Then give Chrome Canary a try
http://i.i.com.com/cnwk.1d/i/tim//2010/07/26/Chrome-Canary-about-518px.jpg
Currently there is no difference between Developer version and Canary but it will change soon
There will be a lot of regression
I think you can install Google Chrome Stable or Dev. beside Google Chrome Canary without problems.
I am not so sure but I like these icons
http://i.i.com.com/cnwk.1d/i/tim//2010/07/26/Chrome-and-Canary.jpg
Read about it here
http://news.cnet.com/8301-30685_3-20011599-264.html
Download it here