The developer of Sn0wBreeze, iH8Sn0w, has posted another teaser video for his new software. Sn0wbreeze is set to be a fairly easy ipsw builder for custom iPhone firmware files.
iH8Sn0w says:
“Another Teaser… I have no idea why Teaser 2 was removed. Anyway. Like always, its not done yet! GUI is subject to change. Like the window sizes 
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I was so happy when I saw this. I actually downgraded my iPhone just to get tethering back but was sad not to have MMS. Now I have both because of BlackRain and Sn0wBreeze,
Does anyone know if this will jailbreak teehered devices as I just had to replace my 3g to a 3gs and can’t jailbreak it without it having to be restored after reboot or powering up after shut down