True20 is certainly a cool system, and as Chuck says - able to handle multiple genres with fairly little pain. I think we'll begin to see more support after May from 3rd party folks, but that can be good or bad as we've seen with d20. Luckily, the publishers who have worked hard to make True20 material under the current license have done a fairly good job of not jumping on each others toes and making multiple different rules for a single topic. But, that may change, either for the good or the bad.
The community is active on their boards, which is great.
And, although the rules may seem weird and stuff right out of the gate, resist the urge to house rule until you've seen it in play. Some dig it, some don't, but don't discount the mechanics without a solid playtest, as most people find that after all the house rules, the core really tends to work well enough in the end.