Interesting that the RBC mobi opens up with the first four numbers of their customer accounts already filled in.
They have recognized and developed it as the simplest method for their customers to access their bank information.
CIBC.mobi is owned by the CIBC bank, but it resolves to their .com site.
The acronyms for the other major banks are BNS, BMO and TDCT.
The other Canadian banks aren't going to let RBC and CIBC skate away. They will respond with similar websites. The competition for customers is too fierce among them to ignore any competitive advantage.
It is just a matter of time.