I'm looking at Android phones on Ebay.  I've come up with a list of 791 phones (though I can eliminate some off the bat, like the contract deal that the filter missed) and need to narrow down the list further:
http://www.ebay.com/dsc/Cell-Phones-Smartphones-/9355/i.html?Operating%2520System=Android&Contract=Prepaid|Without%2520Contract|%2521&LH_BIN=1&LH_ItemCondition=1000|1500|2000|2500|3000&LH_TitleDesc=1&Brand=Acer|Alcatel|CECT|Fujitsu|HP|HTC|Huawei|Kyocera|LG|Motorola|NEC|Panasonic|Pantech|Samsung|Sharp|Sony%2520Ericsson|Toshiba|ZTE&_nkw=%22Android+2.3%22+wifi&_dmpt=Cell_Phones&rt=nc&LH_RPA=1

Some questions:
1.  What does "wifi enabled" mean?  If this doesn't mean that wifi works right out-of-the-box, what does it take to connect to a wifi network?
2.  Do I need an unlocked phone, or is it enough to avoid deals that require a contract?
3.  What do you think of the Samsung SPH-M820, Motorola Droid 2 A955, and Sony Ericsson XPERIA Play?  These are on Google Play's list of compatible devices and have decent reviews.

-- 
Jason Hsu <jhsu802701 at jasonhsu.com>