In case you haven't heard the Samsung Galaxy S is the superphone to be waiting for at the moment. It is coming to the US on each of the four major carriers. They vary a bit by specs, but all of them sport a 1 GHz Hummingbird processor (more powerful than the previous reigning champ, Snapdragon), support for excellent 3D graphics and gaming, huge screens (larger than four inches), and Super AMOLED displays (very bright, low power consumption screens).
None of these phones have been released in the US yet, but they have already been rooted. The unlocked, international version of the Galaxy S was first rooted by Russian developer LeshaK of Samdroid. The hackers over at xda-developers then ported his work on to the US versions of the phone.
This hack has already been confirmed to work on the AT&T and T-Mobile versions of the phone, and can be applied by a simple update.zip (one of the tried and true rooting methods for Android phones). Only a simple modification was needed between each of the models, so it should work on the Verizon and Sprint versions as well!
There are already custom ROMs sprouting up for the Galaxy S (unlocked international version) originally courtesy of Paul O'Brien at MoDaCo. It is expected that these will be easy to port based on the similarity of the hardware. Due to the huge proliferation of this device, there should be a considerable developer community around it. More ROMs are to be expecte including some that run Froyo, Google's newest version of the Android OS.