TrustedReviews take a look at the Sony VAIO VGN-TX2XP:

The 11.1in screen is the same as the TX1XP with a generous 1,366 x 768 resolution - this gives you a true 16:9 aspect ratio, making the TX2XP ideal for watching movies on the move. The TX1XP pioneered the use of LEDs as a backlight source for a notebook screen, but it wasn't without issue - there was a significant amount of light bleed from the bottom of the screen - something that I mentioned to Sony at the time. Thankfully it would appear that Sony has worked hard to resolve this issue because there's no hint of light bleed on the TX2XP.

Inside the TX2XP you'll find an Intel Pentium M Ultra Low Voltage CPU running at 1.2GHz, just like the TX1XP. The processor is supported by 1GB of system memory, just like the TX1XP. Storage has increased since the previous model - Sony has squeezed an 80GB drive in this time instead of the 60GB unit seen in the TX1XP. Graphics still come courtesy of the Intel integrated chipset, although this time it's the 915GM which can grab up to 128MB of system memory.

Just like the TX1XP before it, the TX2XP is a beautiful, lightweight, slim and sexy notebook with truly astounding battery life. Unfortunately the game has moved on since the TX1XP and Sony's own Core Duo equipped VAIO SZ1VP would definitely be my choice of notebooks right now. That said, if you absolutely have to have the lightest machine around with the most phenomenal battery life, then there really is nothing to touch the TX2XP.