The Even More and Even More Plus plans are indeed unlimited calling to any phone, on any network, land or mobile (say "goodbye" to calling circles). You can also get unlimited text and unlimited data as well. All starting at $50/month. This indeed a recent development.
Sprint's plans are only mobile-to-mobile. Any mobile, on any network, but doesn't include land lines (at least as far as I know. Their ads are very specific about it being mobile-to-mobile). 4G is a neat marketing gimmick, but even Sprint isn't using it yet. So it's moot.
Only T-Mobile offers no contract options, which is what the link in my first post was all about.
Sorry this turned into a long thread. It wasn't my intent. I doubt there's any one carrier that works best for everyone. It completely depends upon your calling and data habits, as well as your location. Seriously, it doesn't matter who has the largest network. It only matters that the network works in your area, with few dropped calls (if any). And as I stated before, lots of coverage doesn't equate to better service.
No doubt Verizon has better coverage in remote areas more than other carriers, but don't assume that you're automatically covered. Many times I've been out in rural areas where only my T-Mobile phone worked, and my friends with other phones didn't. That's why an accurate coverage map is so important. T-Mobile has one.
For full disclosure, yes, I work for T-Mobile. As with Sprint, T-Mobile has recieved a bad rap for awhile about their coverage. But they outspent the competition 3:1 over the past few years building out their network - to the point it's nearly identical to the others now. In fact, most all the carrier's coverage are about the same these days. It's now really a matter of who has rolled out 3G the most. Verizon is ahead of the pack on that, which is why they are so focused on it now. To be sure, T-Mobile's 3G coverage isn't as big as Verizons, but that might not matter to you anyway.
Note that 3G ONLY affects data speed, meaning faster web browsing, and in some cases, faster apps. So if you don't surf the web much on your phone, or don't use apps, 3G means squat to you.
Bottom line: Only T-Mobile offers unlimited talk, text, and data to anyone, anytime, at the lowest rate of anyone, AND with no contract!
Ok. I'm done sounding like a commercial. Even I'M getting tired of hearing myself. I simply wanted to clarify a few misconceptions. I suggest checking out all the carriers when you're ready to switch, and see which one is best for your needs.
