Here is the next update for Fuji lenses and the X-PRO1:
Firmware 1.01 for X-E1 (click here): It will add the compatibility with Fujinon XF18-55mmF2.8-4 R, improve the auto focus accuracy with XF60mm lens, and prevent under exposure when using the M-Mount Adapter .
Firmware 2.01 for X-PRO1 (click here) : Get full performance with the Fujinon XF18-55F2.8-4 lens. The size of the bright frame on OVF can be magnified in relation to zooming motion of Fujinon XF18-55mm lens. When using the focus checking function with “3-time” magnification in manual focus mode, you could find a few dots (black or color) only in live view image on EVF/LCD. Improve auto accuracy focus of XF60mm lens and prevent under exposure when using the M-Mount Adapter.
keep it up, Fuji!