Tablet-style Thinkpads are quite rare here. I doubt that I can find one for a reasonable price.
I got them for dirt cheap: equivalent to $15 USD for 2 battered but working X61T's and another one with a working SXGA+ screen but cracked protective glass.
The L7700 was the one with the cracked glass, so I took the lid from one of the other units. The one that lost its screen eventually became an X601sT Frankenpad for a client.
I managed to liberate the SXGA+ panel from the broken glass, but killed a few pixels in the process. However, it was completely destroyed during my attempt at the X61 SXGA+ mod.
The L7700 ended up with my mother, while the other complete X61T (L7500) became my backup. When the L7700's hinge broke, I moved its HDD to the L7500 instead of swapping the lid or the board.
I've tried the stylus on the L7500 earlier, but couldn't get it to work. That's why I'm immensely pleased that it works on the L7700.
Thinkpads I currently own
1. X220 -- primary machine
2. X220 -- used to be my sister's, has a random shutdown issue
3. X61 T7500 -- originally planned to be swapped with a friend's T410, but she sold it instead
4. X60 T2300 -- recently rebuilt, no current plans other than libreboot testing
5. X61T L7700 -- the subject of this thread
6. 560E -- dead screen, donor for portable monitor/keyboard project
The X61T L7500 is still with my mother, but it's just a backup machine. A new Lenovo Ideapad with a Celeron N3150 quad-core arrived late December (raffle prize from an office Christmas party).