Vagalume, one of the applications I am using most often on my Nokia Internet Tablet N810, besides the well known applications for browsing the web, reading email, reading rss feeds, watching movies/series and reading PDF documents!

Vagalume is a GTK+-based Last.fm client. Although it works on desktop PCs, laptops and netbooks, it is specially designed to work in the Maemo platform, the one used by the Nokia devices such as the N800, N810 and N810 WiMAX.

A few of the most important features are:

Ofcourse, it plays Last.fm radio streams
It support for different radio stations (personal,neighbours,loved tracks,...
It supports marking tracks as loved or banned
It can tag artists, tracks and albums
It can send recommendations to other users
It can add tracks to your playlist
It can download free tracks to your hard disk
It scrobbles tracks so they appear in your Last.fm webpage
It sends Now Playing information

The latest version is Vagalume 0.7, released on 01 Sep 2008. Vagalume is sponsored by Igalia and is being developed by a team led by Alberto Garcia with some contributions from people around the world.

And what some people will say, what the hell is 'Last.fm' ?

Last.fm is a music service that learns what you love...
Every track you play will tell your Last.fm profile something about what you like. It can connect you to other people who like what you like - and recommend songs from their music collections and yours too.

…and as you use Last.fm, you make it better for you and everyone else.
When you recommend some music to a friend, or you tag it, or you write about it - even just listening to it - you shift the song's importance on the site. It'll be recommended to different people, because you've listened to it. It'll move up our music charts and maybe more people will hear it because you thought it was good.