It looks like we won't be waiting much longer for root on the HTC Incredible. Unrevoked, the same team that brought Root to the HTC EVO is bringing it to the Incredible. They are exploiting a race condition on boot-up but the process has not yet been automated and isn't quite ready for mass consumption. However, the most difficult step has been completed and now they just need to fine-tune it and we should see something much more reliable very soon.
You can read the full thread at XDA Developers here: Unrevoked team: Incredible Root process - xda-developers
Or you can discuss this in our HTC Incredible Hacking section here: HTC Incredible Hacks