I'm not shure if I understand. Wireless LAN has an A-Band and an N-Band (also as b and g; see http://de.wikipedia.org/wiki/WLAN
for details). Normally (?!) you get b/g/n and "better" Ones also has the A-Band. I'n not shure if the PRO X2 Modells will work in the A-Band (I see nothing in the Tech Specs).
If you have no public Hotspots (I assume you mean that with "Wi-Fi") then you have to use a UMTS/GSM Personall-Hotspot e.g. Linksys WLAN Router with buildIn UMTS-Card Slot.