AT&T Wireless will remain a player in the US mobile marketplace for a long, long time. They have a good mix of products and service area. They also have the cash and are in the market position to buy a weaker competitor. I would expect them to hookup with a regional carrier such as US Cellular.
AT&T will last in the mobile market because it has a great record of customer service and because they have a very good market with no-contract phones. They have plans that are .10 cents a minute for their GoPhones, and because so many people don't want contracts, AT&T has responded to the market with this service.
At&T will remain a staple in the mobile market for years to come for three reasons. First, they always have the next "best thing" in regards to technology. AT&T keeps up with the growing technology market by always having the trending smart phones and tablets in stock. Next, they really take care of their customers. AT&T will send their customers gift cards for signing up, or even just being a great customer! I got a $10 gift card in the mail from them saying to "treat yourself." It was a really nice surprise. Also, they constantly lower customers' bills by helping them pick the best option for their family. I got a $50 discount on my bill just by changing a few things. Therefore, AT&T will remain a staple in the mobile market for years to come.
The decline of AT&T appears inevitable from competitors from the Far East and India. This kind of competition will easily be able to undercut AT&T's prices. They have become too relaxed with their position in the telecommunications market and change is inevitable from new money in the East. Also, the advance of free user-based Internet services as an ever-changing platform is slowly crumbling away at their empire.