This is a legit 2.0 software download. If you can't wait to get it... here you go.
http://appldnld.apple.com.edgesuite...080710.bgt53/iPhone1,2_2.0_5A347_Restore.ipsw
http://appldnld.apple.com.edgesuite...080710.bgt53/iPhone1,2_2.0_5A347_Restore.ipsw