Scorum.com - Become a paid sports blogger
Linphone - Linphone is an internet phone or Voice Over IP phone (VoIP).
Fanly - Keep up with all of your favorite sports teams
Zoiper - Cross-platform VoIP softphone dialer for SIP and IAX systems
Grandstand - Sports highlights straight from the crowd
Sipdroid - Free and open-source SIP/VoIP Client