ThinkPad tablet firmware has DMI product name and version reversed:
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: LENOVO
Product Name: 7762AS1
Version: ThinkPad X61 Tablet
Serial Number: LKZCDH2
UUID:
6ADBC681-4FC9-11CB-844F-
B47CB9210BE2
Wake-up Type: Power Switch
SKU Number: Not Specified
Family: ThinkPad X61 Tablet
KEYBOARD_KEY_f3=f21
# Thinkpad X200_Tablet
-keyboard:dmi:bvn*:bvr*:bd*:svnLENOVO*:pnThinkPad*X2*Tablet*:pvr*
keyboard:dmi:bvn*:bvr*:bd*:svnLENOVO*:pn*:pvrThinkPad*X2*Tablet*
KEYBOARD_KEY_5d=menu
KEYBOARD_KEY_63=fn
KEYBOARD_KEY_6c=direction # rotate screen
# ThinkPad X6 Tablet
-keyboard:dmi:bvn*:bvr*:bd*:svnLENOVO*:pnThinkPad*X6*:pvr*
+keyboard:dmi:bvn*:bvr*:bd*:svnLENOVO*:pn*:pvrThinkPad*X6*Tablet*
KEYBOARD_KEY_6c=direction # rotate
KEYBOARD_KEY_68=leftmeta # toolbox
KEYBOARD_KEY_6b=esc # escape