It looks like the terms for the use of Google Maps changed .
There is however still the requirement to use the Google APIs.
I am still puzzled whether the use of the static map API is allowed, since there is still a restriction. If that is not possible, this means that the other - more OS dependent - method of using a 'browser' must be used.
Anybody who can find a clear anwser to whether or not the use of the static API is allowed, do not hesitate to provide a clear reference in a comment on this post.