The iPhone Dev-Team has announced that the iPhone 2G, 3G, and iPod touch 1G can be jailbroken on OS 3.1.3 already.
Thanks to daring experimenters in the comments, we can confirm that yesterday’s redsn0w works for today’s 3.1.3 update for iPhone 2G. Just point it at the 3.1.2 iPhone 2G IPSW after doing update or restore to 3.1.3.
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Can confirm that this method works for iPhone 3G and iPod touch 1G too. Don’t do it for iPhone 3G if you need an unlock though (really, don’t!). For older iPod touch 2G, we’ll need a small (1-character) change in redsn0w source.
WARNING: Don’t go near this if you have 3GS, newer ipt2G, or any ipt3G
So basically the update is safe for those with an iPhone 2G and iPod touch 1G. Those with an iPhone 3G (who don't care about unlock) can update as well.
Thanks to daring experimenters in the comments, we can confirm that yesterday’s redsn0w works for today’s 3.1.3 update for iPhone 2G. Just point it at the 3.1.2 iPhone 2G IPSW after doing update or restore to 3.1.3.
...
Can confirm that this method works for iPhone 3G and iPod touch 1G too. Don’t do it for iPhone 3G if you need an unlock though (really, don’t!). For older iPod touch 2G, we’ll need a small (1-character) change in redsn0w source.
WARNING: Don’t go near this if you have 3GS, newer ipt2G, or any ipt3G
So basically the update is safe for those with an iPhone 2G and iPod touch 1G. Those with an iPhone 3G (who don't care about unlock) can update as well.