Hello people

I've got an iPhone 2G and I've upgraded/jailbroken/unlocked every firmware since 1.1.4.
Upgraded to 2.0, then 2.0.1, and last week 2.1.

Its really simple, download the 2.1 firmware as a file, bootloader 3.6 and 4.2 files, and get yourself over to http://blog.iphone-dev.org, and read the section "Redmond, we have a pwnapple".

Looks like firmware 2.2 is imminent!

As for "bricking" your iphone, its 100% impossible. There are tools to get it back should the worst happen, so dont worry