Is LTE Standardization a Problem?

Sharif Sakr indicates that it is and that roaming will be difficult – Wherever I wander, wherever I roam, LTE probably won't work:

Hopes of a cross-network LTE standard were dashed months ago, when Verizon confirmed its 4G band won't overlap with AT&T's. What we didn't realize, though, was just how globally fragmented this technology is likely to become. A report by Wireless Intelligence predicts there'll be 200 LTE networks around the world by 2015, running on as many as 38 different frequency combinations. Moreover, the most common 700-900MHz spectrum range could account for just 16 percent of these networks. This stands to make carrier locking and band incompatibility on handsets even bigger hassles than they are today.