I took this as an entirely valid question: If some company were to come out with a locked version of the N900, would it be possible to jailbreak it? The answer is "yes". With the N900, it doesn't matter what sort of OS locks are on it, as it can be reflashed to the default OS in about 10 minutes. It would be just about impossible to "lock" the N900 in any way, other than requiring some piece of software to run on some specific network, in which case you'd have a choice of "unlocked, but only if you don't want to use network x", or "locked if you are using network x" That is, unless someone managed to reverse-engineer whatever bit of code had to be run to connect.