We absolutely will offer MMS on iPhone 3G S in the late summer, once we complete some system upgrades that will ensure our customers have the best experience with MMS. These upgrades are unrelated to our 3G network. … We plan to offer a tethering plan but we don’t have anything to announce today.

– AT&T spokesperson Seth Bloom

Welcome news for folks who love the iPhone, but hate AT&T. The increasing prevalence of exclusivity agreements between wireless carriers and cellphone manufacturers, like the one between Apple (AAPL) and AT&T (T), is drawing some government scrutiny. Four U.S. senators are urging the Federal Communications Commission to review such deals with an eye toward determining whether they unfairly restrict consumer choice and hamper competition. In a letter, the four asked that the Commission specifically consider the following:

• Whether exclusivity agreements are becoming increasingly prevalent between dominant wireless carriers and handset manufacturers

 

• Whether exclusivity agreements are restricting consumer choice with respect to which handsets are available depending on a consumer’s geographic region, particularly for consumers living in rural America

 

• Whether exclusivity agreements place limitations on a consumer’s ability to take full advantage of handset technologies, such as the ability to send multimedia messages or the ability to “tether” a device to a computer for Internet use.

 

• Whether exclusivity agreements are manipulating the competitive marketplace between commercial wireless carriers. Specifically, whether the ability for a dominant carrier to reach an exclusive agreement with a handset manufacturer is inhibiting the ability of smaller, more regional carriers to compete

 

• Whether exclusivity agreements play a role in encouraging or discouraging innovation within the handset marketplace

An interesting list and one that seems to single out AT&T, though it doesn’t mention the carrier by name. Indeed, limiting “a consumer’s ability to take full advantage of handset technologies, such as the ability to send multimedia messages or the ability to ‘tether’ a device to a computer for Internet use” is exactly what AT&T will do later this week when the iPhone 3G S and iPhone OS 3.0 debut without the carrier’s support for their new tethering and MMS capabilities.

And then there’s this: The iPhone 3G S is compatible with high-speed packet access 7.2 technology, which offers theoretical peak download speeds of up to 7.2 Mbps. But AT&T doesn’t plan to begin deploying HSPA 7.2 until later this year and the company doesn’t expect to complete the rollout until 2011.

Finally, the company’s refusal to sell the iPhone in rural areas where it provides only roaming coverage certainly restricts “consumer choice with respect to which handsets are available depending on a consumer’s geographic region, particularly for consumers living in rural America.”

Clearly, if the senators responsible for this letter were looking for a case study for the problems with exclusive carrier-device agreements, they’ve got one ready-made in AT&T.

What is interesting here, though, are 100 percent unconfirmed hints that the next-generation iPhone will support faster 3G speeds. If this is indeed the case, it suggests that the device may run Infineon’s new SGOLD3 chipset. And if it does, that means it will be capable of supporting not just download speeds twice that of current 3G networks–theoretically 7.2 Mbps–but a five-megapixel camera and real-time video encoding/decoding with a new on-board video camera. Now that would make for an exciting summer, indeed.

With U.S. broadband speeds lagging far behind European and Asian countries, Comcast is finally doing its part to bring the country’s lousy broadband Internet services into parity with those of other industrialized nations. You know, like Iceland. Or South Korea.

Comcast (CMCSA) plans to aggressively deploy its next-generation wideband service to 10 million homes by the end of the year, the company said Wednesday. Based on the ultrafast Data Over Cable Service Interface Specification (DOCSIS), the service should provide download speeds far in excess of those currently offered by the company. It’s to be offered in two tiers. The fastest, Extreme 50, will provide up to 50 megabits per second downstream and up to 10Mbps of upstream speed. Price: $139.95/month. Ultra will get you up to 22Mbps downstream and up to 5Mbps of upstream for $62.95/month.

And what about the 150Mbps service Comcast CEO Brian Roberts demonstrated at the Cable Show last year? The one fast enough to download the entire “Encyclopedia Britannica” and “Merriam-Webster Visual Dictionary” in less than four minutes? Still a ways off, apparently.

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