There is not T50 on the horizon for at least the next 6 months. The P-M 1.7 is the fastest out there now with any concern over battery life (the P4m 3.2 is nice but eats up batteries way to much to be considered a portable). The T41 or T42 with the P-M 1.7 is the way to go today. There will be a 1.8 and 2.0 out by late Q3.