I bought the X100e to replace the Ideapad S9e that i'd had for just over a year.
I love that fact that i can take it away on business trips and not feel like a tw@ when i have it on the desk in front of me.
Everyone would go "ooh, that's nice" and then 10seconds later be laughing as i strugled to type anything on the S9e's microscopic keyboard.
The X100e has Win7 Pro, can use 3GB of RAM and has 'Lenovo ThinkPad' on the case.
It's small, fairly light and most importantly no one rips the piss out of it in meetings!
What more do you want for £400?