Latest PSP firmware adds 20 new radio players
Firmware update ver3.93 available now

Sony says the latest PSP firmware update, ver3.93, is now available for download.
It offers the usual "expanded support for PlayStation Network titles" – so at least that means more are coming to the PSN store.
But more excitingly, it expands the PSP's current internet radio feature, adding 20 new internet radio players that each offer specific styles of music. This should make finding the genre you're after a lot easier (though it obviously depends on how specific your musical tastes are).
According to Sony, more than 50 per cent of PSP users listen to music on their handheld, which presumably means this new, free expansion to their music library will be a popular upgrade.
You can find out more about the firmware update, internet radio and how to download the software at the official Playstation site.