Looks like a few collectors have already received their cases. Here a few interesting cards already up on eBay:
First rip card I've come across. Looks pretty nice.
2010 Allen & Ginter BJ Upton Rip Card
National Animals cards. Don't know if this subset interests me, but the artwork is nice.
2010 Allen & Ginter National Animals
There are a bunch of relic cards out there. The red borders look good. Here is one of the top rookie's of 2010:
2010 Allen & Ginter Buster Posey Relic
Hopefully A&G will be at Walmart and/or Target soon.