Wikipedia maintains a great list of XMPP librarysoftware for the 15 supported languages.
Wikipedia维护面向15种受支持语言的xmpp库软件列表。
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The new Sony eBook Librarysoftware (available for Macs and PCs) also makes it easy to convert PDF and Word documents and transfer them to Sony's eReaders.
Microsoft's music-player is a device that is tightly coupled to music-librarysoftware that runs on a computer, and to Zune Marketplace, an online music store.