So given that smarty marked the Short Codes suggestion as "investigating" in June 2024, and finally launched them in March 2025, that suggests we'll need to wait a considerable long time for RCS.
I'll stick around on smarty for now, as I'm an android user so this doesn't impact me. But I've already started the process to move my elderly mother back to another carrier because iOS users are being negatively impacted by the lack of RCS support by Smarty. To be honest, the lack of communication and the general feeling of unpreparedness (we knew iOS would support RCS for over a year before release) makes me rethink sticking with Smarty.
I appreciate this is a value brand but you've gotta keep up with modern standards and features. Short codes are hardly new....