We'll keep this short and sweet, because we're pretty sure a few of you will be interested in this. The Galaxy Nexus is available to order in the USA.
Expansys USA have the unlocked, 16GB GSM version in stock now and are shipping within days. (Ours will be here Friday!) As the image here shows though, there's not many and as this is written the initial batch have been allocated. At present they're showing as shipping within 4 days.
If you haven't done already, check out our review of the GSM version of the Galaxy Nexus. Then if you're on AT&T or T-Mobile, hit the source link for the product page.