50% off Downloadable PopCap games

Just got this in the email. No idea when it expires.

"Great news for a last-minute gift or a special holiday treat for you - all downloadable games at PopCap.com are half-price!

That's right, you'll save 50% on all individual PC and Mac games (excluding Bejeweled Twist).

Offer applies only to individual titles compatible with your PC/Mac; excludes multi-game packages,
iPod/iPhone games, mobile games, CD-ROM and console products. Not valid with any other offer or discount. Void where prohibited. Offer excludes Bejeweled Twist."