MP3.com permits users to listen to music they own from any computer over the Internet.
FriendFeed now supports 23 Web services, and it also permits users to comment on postings and carry on online discussions.
Skype, whose software permits users to chat online, charges 1.2 pence a minute for calls to those countries.
It permits users to trim and rearrange clips on their computer and upload only the finished product, in compressed form.
It has an optical port that permits users to plug the device into high-end stereo receivers and home theater amplifiers for Dolby Digital or DTS sound.
He said his service should not be compared to Napster because it permits users to trade files through private message exchanges.
Nokia introduced a mobile phone yesterday that permits users to roam across different wireless communications standards in the United States, Europe and elsewhere.
The device, called IMfree, is a wireless hand-held "Web pad" that permits users to send and receive instant messages from practically anywhere in a home.
The AudioReQuest also permits users to locate music quickly on its hard drive by song, album and artist via the device's wireless remote control.
The PC link, Mr. Joffe explained, permits users to download their workout information into their computers, where it can be displayed, stored and charted.
As a result, the new N-Gage permits users to see what games their friends have on their phones and whether they are online.
