Time Warner Cable issued their second quarter earnings, posting a better-than-expected rise in quarterly profit. The carrier saw revenue increase 4 percent to $4.47 billion, and second quarter net profit rose to $316 million up from $277 million. Despite claiming flat-rate broadband pricing wasn't sustainable during the company's metered billing fiasco, broadband revenue rose 9 percent to $1.1 billion.

The company lost 57,000 basic video subscribers, but added 88,000 new broadband customers, 54,000 digital video customers, and 103,000 VoIP customers.

Time Warner Cable CEO Glenn Britt told attendees of a conference call this week that Mobile WiMax launches are coming. "You will hear a lot more about this as we build up to the launch this fall," says Britt -- who confirmed Charlotte and Dallas as early launch markets. Like Comcast, Time Warner Cable invested in Clearwire's mobile WiMax network and will re-sell the service as part of a broadband bundle.

Britt did warn those attending the call that the company was seeing some customers leave their VoIP service as households convert to wireless phone only. "There's evidence of significant cord-cutting of voice in this environment," says Britt. "A tough economy is causing people to make that decision faster than they would otherwise."

"Given the slower subscriber growth in recent quarters, we expect that revenue growth will slow in the second half of the year," CFO Rob Marcus said, also blaming "higher expected programming and marketing expense(s)." Of course, Time Warner Cable has yet to launch faster DOCSIS 3.0 speeds in a single market, so in some instances Internet customers may be defecting to faster options. Time Warner Cable still insists their first DOC 3.0 market, New York City, will launch before the end of the year.