My experience with the first generation, early rev, GN1 was not very good. It was a waste of money, and Samsung refused to support it out of region. I switched to an iPhone as my primary. I bought a Samsung S2 duos as my secondary. Both phones work reliably. I recently loaded Jellybean on my old GN1 and gave it to the in-laws as a mini tablet. To this day when using a stylus, it still inks 3cm above the screen, and among other problems it still looses it's marbles and must be hard reset to recover. Oh and of course using Bluetooth headset proved to be a nightmare before voice talk was neutered. Honestly, have these problem been resolved? Before you say it, I know two other GN1 owners with the same problems. I have read about many others.