Run IE8/7/6, Firefox, Safari, Chrome, and Opera from the web (opens in new tab)

This is not for those of us who do not use Windows: "Xenocode WebApps [...] run instantly on any Windows desktop."

Seemed promising, but turns out to be irrelevant to me. If I ran Windows I could already run all those browsers. It would be really nice if they released a version that could run on OSX.

I click on one and it wants me to run an executable, and that in no way could be a trojan or anything right?

Running IE6 under Vista is still valuable, but this tool still fails where IETester fails-- the fonts are not rendered at the same size as they would be in IE6 on XP. Useless for developers/designers if you can't trust their renderings.

http://browsershots.org/ lets you get screenshots of your website from many more browsers. (but its screenshots, so you cant interact with the website.)

This is potentially useful, mainly for running different variations of IE. However ...

a) "from the web" is misleading. It is a native windows exe. It is in no sense running "from the web".

b) nor does it really run in a real virtualized sandbox - try downloading something or saving something from within a page. you'll get a file browser to save onto your own real file system.

Ran IE6 one from Fusion and it basically shows a white screen on every page. Not so great.

Cool idea though. Hopefully the smooth the kinks over.