I just posted release 1.4.1 of my OfflineMaps application.
There was an error in the 1.4.0 verszion which prohibited the downloading of tiles, which is what the application is all about.
I also noted that Google updated their base-URL’s, so if you download the above version, start by updating the base-URL’s.
You can download it on the project page
Hope you enjoy it !!