OMA test fest stauts on inputmode

Hello, XHTML WG experts (CC(OMA): Bennett, Henrique, Kimmo)

This is Yam.
To clear my action item, I checked the OMA test fest results
on inputmode.
The inputmode was not tested in OMA test fest.
The attribute was hints for user agents and optional for
OMA XHTMLMP 1.2.
I revisited XHTML Basic 1.1, and not sure any mandatory
user agent conformances are set using RFC2119 terminology.
I would like to get some education about the W3C's
interoperability criteria.

Best Regards,

-- yam