Hi,I am thinking of buying Photon Plus usb modem which is supposed to give a speed of 3.1 mbps as advertised after using the very slow Plug 2 Surf usb modem for over a year now. But I have some doubts that need clarification from.1. Is this Photon Plus modem made to work with both laptop and desktop or laptop only? Is there a difference is performance when used with either of them?2. Will I be able to use it only as a pre-paid service (be recharging whenever I feel like) as I hate monthly billing? 3. The fair usage policy ie monthly download limit on an unlimited 30 day usage is 15 GB, is that right?4. One can buy this modem anywhere and use it anywhere in the country provided it works there, correct?5. Please tell me you experience of average download speed as I have seen members on this very forum mentioning it to be some where between 100-300 kbps.Thanks