While AT&T, Inc. (NYSE: T) continues to bask in the sunlight of huge iPhone 3G sales, competitor Verizon Wireless isn't doing too shabby, either. In fact, one analyst says both wireless carriers are stealing all the customers and thunder from the other wireless carriers in the U.S. and riding off into the sunset. Those other wireless carriers? They're stuck eating dust at the moment.

Craig Moffett of Bernstein Research mentioned the U.S. economic slowdown as magnifying the effect, while stating "There simply isn't enough growth left in the market to support all players." He's right -- carriers like Sprint Nextel Corp. (NYSE: S) have been struggling for quite some time (even installing a new CEO), and fourth-largest carrier T-Mobile is just standing by gaining customers as needed. At the same time, AT&T and Verizon Wireless continue to grow. Remember, these are the remnants of the old telco companies that are now becoming monopolistic just as they were in the 1980s with the landline telephone market. Yes, I said monopolistic.

Moffett added that the rapid decline in voice spending with wireless carriers has not been made up, as hoped, with wireless data and texting revenues (even with rising prices). Moffett then added, "That makes subscriber growth -- again -- virtually the sole growth engine for the U.S. wireless industry." With wireless maturing as an industry, are there growth times ahead, or just a consolidation of carriers as all markets are saturated? Growth, especially in 2009, will be hard to come by.