If you own Lightroom 1.x, you can use the Lightroom 2.0 beta for the entire duration of the testing period. If you’re not an LR 1.x owner, the LR 2 beta expires 30 days after first use. There’s an interesting caveat, however: LR 1 owners each have the ability to invite five folks to participate in the LR 2 beta, extending their use beyond 30 days. We think it’s a good way to strike a balance between rewarding current customers & getting feedback from new customers. If you’re interested, check out the details & share some love.