After a long silent month we are glad to announce that we release a new version of GPS Serial (code-named 1.2). It should fix a lot of problems including incompatibilities with Navigon and Sygic. Moreover it fixes the speed issue that everybody has. The software is now consuming less battery and it is now totally inactive when the GPS is not used (even the serial port is closed, for technical people ). It will be available in some hours in the usual ModMyI repository which is included with any Cydia installation.
We want also to inform you that xGPS is not dead and we are actively working on a new version with complete vectorial maps (i.e. you will be able to bring your whole country or even the whole world right in your pocket). There is still a lot of work to do but we are on the good way. We hope to have a beta version ready for the beginning of September. We will make a new beta tester team for that occasion. More information about that will come in the following weeks so it is unnecessary to ask in the forums or anywhere else how to become a beta tester.
Thanks again for your patience and support.