Very satisfied with this new extensions. Easy to use. Although i was a bit surprised at the size of its sql data after installation (around 20MB). I think that's one huge data for one component. So uploading it to production website (online) should involve compression which is rarely situation in the past for me (for a simple joomla website).
Anyway, this is one of the best solution to mobilize joomla. Many thanks to mobilejoomla.