Joining the Brits at their London event on the 11th, Microsoft will be staging an event in NYC from 3pm EST to show off their WP7 phones. T-Mobile will be "present for device showing and their service offering discussion," apparently.

Pencil in a mid-afternoon Giz browsing session on your work calendars, people. [Microsoft via Engadget]

UPDATE: Microsoft and AT&T have an event scheduled in for earlier in the day, as the yellow invitation up top shows.