How can IMS help launching new services?

During past IMS 2.0 World Forum, panelists pointed about IMS deployment being slower than anticipated. When convergence is a main goal, but on the other hand internet communication services are becoming more and more popular, the Telco role is being questioned mainly from internet related representatives.
In our opinion, even considering the fact that a lot of convergent communication services can be offered directly only needing connectivity from the telcos, this approach has 2 weaknesses in order to boost "mass market" services:
a) Complexity, the mobile penetration index is higher than pc-based internet penetration, then a lot of mobile users with not internet and internet-based literacy will be out of mobile advanced services revolutions if the approach is the "internet applications" one.
b) Entry costs for users, the internet/internet applications based approach to enrich mobile solutions needs powerful smartphones, and has portability costs, and most of people don't want to install hundreds of apps.

In the past we can find examples of simple enablers being the base of very different services (SMS case). Simple and common enablers, included in all the device range are easy to be massively adopted. This is the main reason to forecast that proper combination of IMS with RCS (rich comunication suite) combined with a proper and "transparent" billing scheme could be a good alternative for carriers to keep heading the mobile revolution for the masses and this is compatible with other approaches.
Find our keynote about "what final user wants and how IMS could fit the bill" :-)