Source: MSX Forum
JR, developer of fMSX/S60 - the MSX emulator for Series 60 mobile phones - has just released the very first version of MSX80, an MSX emulator for the Nokia 9300, the Nokia 9300i and the Nokia 9500 phone models. This initial release is really to be considered an alpha version which crashes randomly and may cause problems on your mobile phone. For a further explanation please visit the MSX80 website. As usual, you can discuss this release, suggest features and report bugs in this forum topic.
Relevant link: MSX80 website