Although Sprint is winding down iDEN services here in the US, it hasn't turned its back on the technology completely. The nation's third largest wireless carrier has announced a new push-to-talk service offering, dubbed International Direct Connect. The $10 monthly add-on will allow Direct Connect push-to-talk users in the US -- utilizing its CDMA network -- to communicate with iDEN PTT users in Argentina, Brazil, Chile, Mexico and Peru free of
