It looks like Arctic Monkeys may be going on (a post-Sasquatch Festival) tour in June with their NYC friends We are Scientists. At a minimum, they're playing together at Roseland on June 14th.

ARCTIC MONKEYS TOUR DATES (so far)
05/28/06 - Sasquatch Festival, George, WA
06/10/06 - Roxy Theatre, Atlanta, GA (on sale 4/10)
06/14/06 - Roseland, New York, NY (w/ We are Scientists) (tix on sale 4/14) (thx Matt)

We are Scientists are also playing at the Stone Pony in NJ on April 23rd.

Previously
Video of We Are Scientists accepting Arctic Monkeys' award
Arctic Monkeys @ Webster Hall, NYC | pics
Selling out Bowery Ballroom | A Highlight for We Are Scientists