Although we'll be in New York City tomorrow doing a live blog of the whole Windows Phone 7.5 sneak peek, Microsoft just put up some info about it as well for those of you who can't be there in person (which we imagine is like, all of you).
We're not sure if they're streaming the event, though it sounds like they are. If so, you'll want to go here to their Windows Phone newsroom: http://www.microsoft.com/presspass/presskits/windowsphone/
Of course, we'd recommend that you have one tab for them and one for us, since we'll be giving our thoughts on the news as it happens. Plus we'll be there afterwards for any device hands on (rumors of prototypes being there) and after-the-event fun.
Source: Windows Phone Blog