public interface LocalizedNumberFormatting
field types
 "localeInt", "localeFloat" and "localeCurrency" to have locale-specific formatting applied to
 numeric values, as well as automatic parsing of user inputs that use locale-specific decimal
 and grouping separators.    These special types automatically use GWT's NumberFormat logic,
 using the default locale. Additional SimpleTypes
 can be created that call GWT's NumberFormat if more variations are needed. 
Note that language packs shipped with SmartGWT contain properties such as "decimalSymbol" that seemingly would control localized number formatting. These are inactive for SmartGWT and should be ignored.
 See I18n for more background on
 internationalization.