Hi freemangordon, thanks for looking into supl-proxy from tajuma.

Using the supl-client tool is one relatively easy way for showing that google an sonyericsson respond differently to SUPL requests (compared to nokia and vodafone). And thats the reason why some servers dont work with Maemo/N900 and others do work - if there are no cert issues. Other operation system obviously don't have that limitations for the responded data and work with all of the mentioned servers.

Deploying supl-proxy as a real MITM is a bit more advanced, my results for this are in this earlier post
http://talk.maemo.org/showpost.php?p...&postcount=101
(see attached zip there for logs) and
http://talk.maemo.org/showpost.php?p...&postcount=114

May be you (or anyone else) are able to extend the supl-proxy source code to make it work as kind of a service, i.e. so it doesn't stop after each connection?
That would make it possible to use it as a private proxy without any certificate trouble (maybe even locally on N900).

Unfortunately I can't do it by myself with reasonable effort.