Helium Digital has announced the launch of its new HD-005 3.5mm Headphone adapter, which allows all headphones that use a standard 3.5mm headphone jack to be used with the iPhone’s recessed headphone port. The HD-005 adapter sells for $4. Google has launched a new iPhone-specific interface for its Google Calendar application. The new interface can be accessed by visiting calendar.google.com from the iPhone or iPod touch. iTunes competitor Virgin…
