so i ranted and raved about having slaved through the trials of rooting my d2g and all for nothing because i'm still w/o wireless tether directly with my phone ...well after a bit of searching and playing around i got wireless to work with my ps3 again...but it needed some help
put all your rooting aside and get back to the phone basics you will need:
#1 a computer/laptop running windows7
#2 a copy of pda.net, here PdaNet -- USB Tether/Bluetooth DUN for Android
donate to them so you can have full access to the web. ($15) the free version does not do secured sites like gmail etc.
then set up your pda.net tether so you have internet on the win7 computer, after you get internet on the computer,
#3 go download and install a free program called connectify. it's here Your Hotspot, Your Way - Connectify install and run connectify and then you set up your win7 computer as wireless hotspot.
then you can hook up everything you have wireless to the pc running connectify that is tethered through your phone via PDA.net with your unlimited wireless...
now connectify does support vista and XP but it is only through AD-HOC..which won't work for many things because of the security protocols. i currently have my ps3, my laptop, my wife's laptop, and ipad2 all connected at once.. it works and i'm only running the free version, there are more options with the pro version if you feel frisky.
if your going to be streaming massive things, (hulu, youtube etc) this may not work as well because you'll split the signal..but for surfing the internet/email checking and doing occasional updates/downloading various applications it's more then adequate
i don't know if anyone has shared this before, but there it is...if it helps one other person then it's worth it...