@sambeckett,
Woopra beta only works for sites with less than 10,000 visits a day(as stated on the site) which is why it may have stopped working although I thought it was supposed to just drop the older data at that point.
Anyway, two sites pending approval but since Woopra is still very young and is only in beta release right now, I'm fine with waiting, no problem. I'd rather wait until you Woopra folks have the hardware/software in place that can handle an increased amount of users and even more above than taking on more sites than you can realistically handle.
I remember the "Pmetrics" fiasco when they first came out. Over a half a year of outages and downtime because they released way too soon and found out after the fact that their systems could not handle anywhere near the sites they had approved for use. Absolutely unacceptable on "Performancing.com's part so take your time and get it right, yes?