Froyo for AT&T's version of the Dell Streak has certainly been long in the making - and it looks like it AT&T still isn't ready to release it - but users who simply can't wait any longer now have an option, albeit an unofficial one.
CyanogenMod 6.1 Alpha has just been ported over to the 5-inch tabletphone, and while the experience is said to be imperfect as it stands, WiFi, Bluetooth, 3G, and hardware acceleration are reportedly all in working order. Despite some minor issues, perhaps what you'll find at the download link below is also what the device should have with way back when in August...
Source: MoDaCo