[citation][nom]kryzzay[/nom]Yep no G3 has the ability to move apps to SD by default. Only way to get around it is to root and use the app directory bind. The only issue with that is the game/app you move to the ext SD will perform a lot slower.[/citation]
That is another problem SDXC fixes. It allows for much greater speed, more like that found in SSD units in a PC. You may have noticed a new rating system carried by SCXC cards, UHS. (Ultra High Speed) UHS-II allows for transfer rates up to 314 MB per second. UHS-III is expected to be defined within the next two years, although UHS-II product aren't shipping yet, AFAIK.
Once the capacity of the average phone is perceived as limiting software sales, expect to see updates to Android that offer more freedom to locate apps. (Likely using encrypted partitions as I described above.) Manufacturers and carriers will want to keep the native capacity low to allow low prices to be advertised at time of sale, leaving it up to the consumer to add capacity as needed.
Apple is the rare exception in offering multiple capacities per iPhone model but as there are no expansion slots the consumer is forced to make a final decision up front rather than starting off with what is both adequate and affordable and adding more storage later as the need arises.