Pinger fulfills the longstanding demand for SMS-style alerts with iPhone 3.0-style support for Push Notifications in the aptly named Textfree 3.0 ($5.99 - iTunes link).

What does that buy you? One year of free text messages for the iPhone (and iPod touch!). With support for every U.S. mobile carrier, including AT&T, Verizon Wireless, Sprint, T-Mobile, Alltel, and others, if the idea of paying Big Telco big money for incredibly small amounts of text doesn't appeal to you, check out Textfree 3.0 and let us know what you think!

Screenshots after the break!

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