Samsung Galaxy S is one of the fastest phone out there, and its on android 2.1 (Eclair) and android 2.2 will even make it faster by atleast 50%. It was supposed to receive the update by October end but now the date has been postponed by a couple of weeks (Mid November). Now aiming for the date could also be observed, because the owner of a Galaxy S of the Scandinavian countries Sweden, Denmark and Norway have already reported that they received the new Android version (maybe trying to tease the owners of the X10 in Sony Ericsson’s How Country).
Froyo should run faster than the previous version of Android and the tethering feature allows your phone as a modem. In addition, the new operating system on a flash support.