Axim is based around MediaQ 1132, which apprently does have USB host capability.
Various google searches reveal that apprently MQ-1132 does have USB host capability, just google for mediaq 1132 usb host.
http://www.accelent.com/TMRG2.ASP?PAGE_ID=652
MediaQ MQ-1132 USB Driver
The MediaQ MQ-1132 Host driver provides an OHCI interface for high-level USB device drivers implementing specific functionality, such as USB mouse and keyboard. The MQ-1132 is capable of 1.5Mbps as well as 12Mbps data rates.
So, can any one elaborate? Can AXIM indeed be a USB host?