Yea, I wish they would hurry up and announce a carrier. Hopefully it will come out to all 4 carriers so that nobody will be left out.
I've pasted the info from IntoMobile below:
"There are a lot of rumors about the Samsung Galaxy S launch date floating around the interwebs, but we’ve just received something that might point to a more reliable launch window for Samsung’s upcoming flagship Android phone. We’ve just been asked to save June 29th on our calendars for some mysterious Samsung launch party in New York City. Details are slim (well, none) at this point, but the invite to the smartphone maker’s launch event gets our speculative juices flowing.
The invite informs us that “Samsung Mobile brings you the next generation in Android phones.” Now, if you’ve been keeping up with Galaxy S rumors at all, you’ll know that this particular smartphone boasts a Super AMOLED display, the Hummingbird graphical powerhouse GPU, and is powered by the Android 2.1 OS. All that adds up to what is very likely considered by the South Korean mobile phone giant to be their next generation of Android phones.
Other rumors have the Galaxy S hitting T-Mobile (NYSE: DT) on July 21st. There’s also the possibility that the handset will hit AT&T (NYSE: T) later this year. We could see the handset being launched for one of these (or both) carriers on June 29th, but that’s just speculation. We really have no idea what this launch party is for, but we’d wager that it has something to do with the Galaxy."