Mobidia Technology has My Data Manager (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE for a limited time.

Take control of your mobile data. Monitor data usage for your home and roaming plans. Set usage alarms to manage your bill. Track historical consumption to ensure you are buying the ideal plan and maximizing how you use your data. Save money by using your data plans more effectively.

This is the first version of My Data Manager on iOS/iPhone. We want to hear from you, so please contact us using the Feedback button in the app.

Please also note, detection of roaming on CDMA networks isn’t supported in this version.