Is Lenovo's IdeaPad A1 GPS-without-3G proprietary? If so, does the platform it runs on (2.3) influence how it runs (if anyone knows, that is, because the device is so new)? If it's not proprietary, what other tablets have GPS-without-3G? I know Archos higher-end tablets have it. Interestingly, Lenovo's higher-end do not. Go figure. Dell Streak has it. I don't know of any others. If having a tablet with GPS-without-3G is the most important factor influencing your choice of whether to buy a tablet or not, does that mean the IdeaPad A1 or nothing? Thanks.