After i0n1c and comex, Chronic Dev Team "is in the books" for the release of an untethered jailbreak solution for iOS 4.3. I think it's the first time that we have 3 different entities that could develop an untethered jailbreak solution for the current version of iOS, but in the end only one of them will publicly release its program. Having so many options to make a jailbreak for millions of iDevices owners, we might think that iOS 5 will be jailbroken very simply and very quickly after its release in iTunes. i0n1c has a separate exploit, comex has another and p0sixninja has another exploit, so 3 exploits that if used properly could bring us jailbreak up to iOS 5.1.
Before we get carried away, we must bear in mind that it is not the first time that several teams have jailbreak solutions and it is not the first time that we have waited a few months after the release of at least one of them.
