Hi Yves,
That's actually a very interesting device, about which I already created a (still quite empty) page on the 3G modem wiki:
Novatel MiFi 2352 - 3G modem wiki
Would be great if you shared your experience with that device on the wiki. I'm especially interested, if it has a connector for an external antenna and also how that microSD-drive is accessible from the LAN. Which protocols does it support? FTP, samba, etc.? Can you activate WAN-access for it?
Does the device have remote management?
regards,
Inquisitor