lets see
with no previous news of ill relationships among the members, and with their track record of awesome gigs and concerts, why in the H would they disband?
anyway, thats just what i think and heard about.
The band has had a history of relational concerns: the separate incidents of perf and nathan leaving, not to mention bamboo. We also have Kakoi's departure. To be honest, I saw it coming na rin in the last few albums. No band lasts forever.
Especially in rivermaya's case, it's easy to assume that because there are no news about the internals, it does not mean that everything is cool. And sometimes, it does not come down to the success of the concerts or gigs - it comes down to very personal things.
I give them the benefit of the doubt.