It was still there last week. I was looking at getting another one, but I was looking for a particular color and they didn't have the size and color I was looking for.
I purchased several items from the one in Epcot at the Outpost in August and also saw the kiosk set up by RnR at DHS. Great gifts for people back home (colourful, pretty) and a great cause being supported. Personally I found the variety a bit more plentiful at Outpost in Epcot.
I bought three bracelets in September at the booth in Epcot. If you look real close sometimes you can see words. I found a bracelet where you can see the words Walt Disney World. The Ultimate Hidden Mickey
If you chat with the CMs (at least at Epcot) you'll find that they sometimes dissect them, and can tell you what material the various colors of jewelry came from. Kinda neat.
Just scroll down and you'll see Josh's pics and info on the EP location. My favorite beads are the ones where you can see the words. You can make your own necklace or bracelet so I always look specifically for those.