The glucose meter app for Android is on Android Market. It's only available for Android 2.0 and above because it's required bluetooth API.
UPDATE: It's on the market from Android 1.5 without bluetooth connectivity.
This is the project website, where you can find out more information: https://sites.google.com/site/glucosemeterandroid/
By the way, It's a beta version so please let me know any bug or suggestion is welcome :)