Currently the Piaggio MultiMedia Platform, latest version 3.5.1 (August, 2018) works on the following in no particular order:
X10 125
X10 125 ABS/ASR
X10 350
X10 350 ABS/ASR
X10 500 ABS/ASR
MP3 300
MP3 500
MP3 500 ABS/ASR
MP3 300 ABS/ASR
VESPA 946 125
VESPA 946 150
VESPA GTS 125 ABS/ASR
VESPA GTS 300 ABS/ASR
LIBERTY MY2015 125CC
LIBERTY MY 150CC
MEDLEY 150CC
MP3 300 EURO4
MP3 500 EURO4
BEVERLY 300 EURO4
BEVERLY 350 EURO4
VESPA GTS 300 EURO4
LIBERTY 50CC EURO4
MEDLEY 125CC