Just wanted to let you all know about a seller of a clone I found on Ebay; the clone is marked and advertised as "compatible", so I think it "follows the rules" as far as things go (?); I ordered it on 4/15 and got it today (fast shipping from HK in my book) - here is the seller:
...and the listing:
Plugged it in, uploaded the blink sketch - seemed to work fine. I'm pretty happy with the purchase and the seller; take it for what it's worth (and as always, do your own research).