Beginning dictation.
My personal experience with the new T mobile UNLIMITED data plan. Actually, it's my experience with TAG mobile and MetroPCS mobile. Both are now under the T mobile organization.
Here in the United States a number of cellular network companies are offering unlimited data plans over there t3G and 4G NETWORKS. As to may already know, watching a video over the set Internet work can use up a lot of bandwidth and a short period of time. The major attraction of the cellular net work is availability. No matter where you are you can stop somewhere and watch a movie or TV show on your tablet or smart phone. Yes, some tablets now are also equipped to be phones. My 7 inch tablet is also a phone.
And let me get to the point. Unlimited data is not what many people think it means. What it means is that you can watch Netflix and YouTube as much if you like on your mobile device without worrying about your data limit. But that does not apply to just ordinary web serving. Bear in mind that many websites offer video clips and other data objects that consume a lot of bandwidth. Does everybody agree on what bandwidth means?
Sometimes bandwidth is used to express the idea of speed of transmission in a short instant of time. For example if your connection runs that 8 million bits per second, you could say that you have a very fast connection and you have what can be called a broadband connection. However, the common usage now is for bandwidth to mean the amount of data that has been accumulated over a measure of time.
Most of the cellular network companies will charge you by the amount of data you use on a monthly basis. Normally you prepay for the amount of data you wish to use and at the end of the MONTH you cannot carry over the unused data to the next month. At least that's the way it is at the present time for most of the carriers.
Streaming video takes a lot more bandwidth than any other kind of data usage, with the exception of downloading huge program files or databases. You can do the calculations yourself an estimate how long it takes to watch a movie and how much data is involved. As a rule of thumb, a high quality video that runs over an hour will probably take up to a gigabyte of data. But that can vary by a whole lot. The common compression used today is in P4 and quite often streaming video is done at a resolution of 480 P. This resolution is lower than what you get on HD television, but pretty well represents what you expect on a standard TV.
Recently T mobile made some statements about other companies slowing down your data read or using a DIFFERENT compression method on your video. At one time T mobile accused AT&T of cutting back the 480 P stream to about 380 P. This means the quality of the video would be slightly less. Arguably, this is done to reduce congestion on the cellular data network.
Now that, my personal experiences are mixed. When I started in at the very low end of the data plan I found out that my data was very limited. Here's what happens. When you go over the set a limit you can still surf the net but streaming video will stop. About the lowest practical resolution for s streaming video is 280 P4 a small screen smart phone or. Even with my poor eyesight I can tell the difference. You can to, the lower resolution will cause you to squint your eyes.
If you wish to watch streaming video on your mobile device and you have an unlimited data plan from one of the major carriers, you will need to use the application program on your smart phone or tablet that helps optimize the resolution for the device you are using. Major streaming video sources, such as Netflix and YouTube, have android applications you can use to improve the overall experience. Also there are such apps for either Apple or Windows based mobile devices.
I have been able to watch some free video streaming on my 7 inch phone tablet by using an application I found in the Google place store. You need an application-specific to the service you are using recently I found an android app for the NBC streaming website. Using that app I was able to watch a lot of my favorite TV shows without overrunning my data limit.
Now about the limit on unlimited data. What they mean is that you can get fast Internet using the unlimited data plan until you reach a certain total data usage for the month. I had mine set at 10 GB and ran over very quickly until I got wise and limited myself to watching streaming video that is allowed by T-Mobile. That way I can continue watching streaming video even though I have gone over my data limit for the month.

I know this sounds confusing, but I'm telling you the way it really is. They call it unlimited data unless you use quite a bit of it that is not unlimited anymore. Unless you're watching certain streaming video sources.
If you have any comments or questions or suggestions please reply to this post.
Disclaimer. Other carries now claim their data plan is a good as T-Mobile.