HTC 5800 / Fusion / S720
Wifi??
In fact, the processor (and probably all of the chipsets) are different; so it would make sense that it does not have WiFi:
Vox (s710):
http://www.pdadb.net/index.php?m=specs&id=679 »
http://www.pdadb.net/index.php?m=cpu&id=a850 »
"fusion" aka Libra (s720):
http://www.pdadb.net/index.php?m=specs&id=759 »
http://www.pdadb.net/index.php?m=cpu&id=a7500 »