Owner of a previous generation Airport Extreme or Time Capsule WiFi router and jealous of the newer versions Apple dropped this week? Well, while you can't shove the drool-inducing, iPhone-friendly dual-radios into the older tech, you can now upgrade them to firmware 7.4.1 which includes the new MobileMe / Back to My Mac sharing feature for AirDisks.

Fire up Software Update and go get it!

(Via @TUAW)