UPDATE: December 2012
When it comes to transferring large files, FrostWire is one of the best choices. The client is also featuring magnet links downloading, compatibility with iTunes, internet radio support, new skins and media library, an integrated audio player, chat rooms, all for free. You can download FrostWire here.
FrostWire is an open-source p2p client that uses the Gnutella network and is heavily built on the (once) popular LimeWire application. The project kicked off in late 2005, after the news that LimeWire’s distributor had introduced code in LimeWire that may eventually prevent LimeWire users from sharing copyrighted material got out.
Differences: the code derives from LimeWire Pro, the paid version of the well-known file sharing client (that is the claim o the makers at least, since it only comes in free version), so you won’t have a problem with simultaneous. The interface is not much improved unless perhaps some of you are just going nuts for blue over green. Now you’ve got tabs with rounded corners, and connections monitors your outgoing and incoming connections by host name, but also presents you with bandwidth details, the vendor and version in use, and more. Another addition is the built-in community chat.
Similarities: almost identical interface, both written in Java offering support for multiple platforms.
FrostWire and LimeWire are pretty much the same but the first doesn’t bombard you with lots of ads.
FrostWire’s built-in media player failed to play MP3s or MPGs, compared to LimeWire and other programs. FrostWire also includes the ASK toolbar, but you can select not to install it during the main installation process.
If you‘re already using LimeWire then you don’t have a really good reason to download this client; however, if your Internet Service Provider controls and filters content and you’re not doing a really nice job downloading with LimeWire, then this could be a good alternative since most ISPs aren’t yet that familiar with FrostWire.
Screenshots of Frostwire: