Mighty Beanz were originally available in 2003/2004 and were reintroduced in January of this year. They released a new series 1 with 100 beanz to collect plus some special/limited edition ones. Series 2 is due out in July and there should be a Star Wars set at some point as well. They've become my #1 seller on eBay and my ecommerce site...I've opened over 500 6-packs of the new stuff and a bunch of old stuff since February.
If anyone has old Pokemon beanz or other 'original' ones that are in good/unplayed with condition, I'd be interested in purchasing them.