with the latest firmware available (version 1.6) the Cradlepoint MBR1000 cellular router now supports the MiFi.
when the MiFi is tethered via USB cable to it, the MBR1000 allows you to network several computers and your printer, either via ethernet ports on back of MBR1000, or via the router's WiFi N wireless network.
the MBR1000 is likely to be the last router you have to buy.
keep in mind, the MBR1000 has WAN input for cable/dsl/satellite; WiFi N (draft 2 which should be the final N); and expresscard and two USB slots for multiple active cellular modems.
not only that, but its already supporting 4G devices from Clear and Sprint.
sure, there will be newer cellular routers that come out, but the feature set on the MBR1000 is pretty complete.
only thing missing from it (in my opinion) is PCMCIA support and gigabit ethernet.