Mobile World Congress saw some strange role reversals this year, especially when it came to the uneasy relationships between web giants and mobile operators. Google lent much-needed support to RCS (Rich Communications Services), an MNO technology which was meant to fend off over-the-top challengers; while Deutsche Telekom dismissed it, with CTO Bruno Jacobfeuerborn saying: “RCS was much too complex. This is something we shouldn’t do again. We need to focus on simplifying services for consumers” (usually, surely, the argument made by the web players). Then there was Facebook, whose recent setback in India, where Facebook Basics has fallen foul of net neutrality rules, sprung from trying to work more closely with MNOs, rather than in the OTT free-for-all the social…