[inquisitor]

Originally Posted by VladS

A bit offtopic, but there's at least one MiFi type device that covers all five UMTS frequencies (850/900/1700/1900/2100MHz) and that's the Huawei E587u-5. It was available from both Telus in Canada for CDN$150 and T-Mobile in the US for $200. The T-Mobile version was rebranded as a T-Mobile Sonic 4G).

Some dealers still sell it: Buy Unlocked T-Mobile Sonic 4G Mobile HotSpot 4G Router | Huawei UMG587 | E587u-5 | 4GSource.net Wholesale Shop

Thanks. That's a neat device, which I wasn't aware of. I hate Huawei for having such a fragmented product portofolio - at least product names seem to finally indicate those different frequency configurations:
E587u-2 UMTS900/2100
E587u-5 UMTS850/900/1700/1900/2100