RadioShack CEO David Edmondson resigned and COO Claire Babrowski was made acting CEO after Edmondson admitted there were errors on his resume.
Doug Busk joined Wireless Services as vice president and general manager of SinglePoint Carrier Solutions.
Bill Beyer was appointed CFO at Bitfone.
Zingy named Bill Hazard CTO of the mobile media company.
Mark O'Connor was appointed vice president of finance at BeVocal.
Aicent named Eric Weiss senior vice president and general manager of mobile applications.