yeah...I've got a huge memory leak with Chrome 7 since yesterday
eating sometimes more than a GB of RAM with one tab opened
it doesn't seem to be a matter of how many tabs are opened at the same time, but how long Chrome's been running, that's awfull ...my overall RAM counter shows up to 3.2 GB in use, never saw that before...
I got no idea how to troubleshoot that, other than stop using Chrome until the next update. There's been already a huge bug with lastpass (solved now, bug was on Google's side), and now this, a browser using between 600 MB and 1.2 GB of RAM
edit: see my last post here http://forum.avast.com/index.php?topic=63294.msg535839#msg535839