WWAN, GPS card plus software Help

Hi, first my system:

XPS 15 (L502x), core i7 2630qm, 4GB ddr3, gt 540m 2GB, intel advanced 6230 wifi+bt.

I'm an avid reader of TomsHardware, so i request for help here. Im from Colombia, my network operator here is "movistar" who have 3.5g in the band of 850Mhz; actually im using an Huawei E226 USB modem to connect to internet.

I'm a very mobile person and i don't want to use the USB modem, i was thinking in this minipci-e card:

WWAN CARD

On the other hand i want some security: any kind of security is in my notebook, no user password, admin account, so that in case of robbery the thief not have to format it (the easy way). I want that every time when windows boot or start session the GPS send the location coordinates to my email.

SO, i have a few questions in my mind without answer, i hope you can help me:

1) Is that a good WWAN+GPS card? or can you recommend me a better one?
2) is there a software that start with windows and run in the background or minimized that automatically send the actual coordinates to my email?
3) can i use internet connection and the GPS at the same time without the aux antenna?
4) which is the purpose of the aux antenna?

Thanks in advance!