Cradepoint has released their battery powered version, the PHS-300 (personal hot spot).

• Pros:
  • Power (INTERNAL BATTERY POWER!!!)
  • Size (smaller than an N800, but slightly bigger than the CTR-350)
  • USB based (support for multiple carriers' devices)
  • Express Card via Adapter
  • EVDO
  • Wifi access point
• Cons:
  • EVDO only (no word on GSM)
• Cradlepoint's web page for it
• 3GStore.com's web page for it
• Express Card to USB adapter from MoreMobileInternet