You can do a lot with it and have both articles and blogs and forums integrated. It is a lot more ambitious than the good old phpbb forum.
Mandriva has had a facelift on their pages and do welcome Openmandriva and Mageia as partners. The company has no clearly communicated profile - but mainly they are offering their expertise to the community and to their partners.
At the moment they seem to have one Enterprise server that has not reached the end of service life (it will in 2014).
Regarding the expertise in web presentation - it is not reassuring that their (only)? serviced product is presented partly in English and partly in French.
http://www.mandriva.com/en/products-services/mes/
That is a quality issue.
("Should I trust my server to people that cannot even get a website right" etc..)But even so, the simple fact that the Mandriva pages are altered represent a "freshnes" that has not been seen in many years, so any movement is better than doing nothing

Making errors (and fixing them fast) is a part of it - and sometimes the prize of being pro-active.
And there will be more products "coming soon".
On the OpenMandriva end I thought a happy birthday message was in order so I went over there to make a congratulation post and
OpenMandriva
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Oh well - I'll do it here:
Happy birthday OpenMandriva
Edit:
It is the preview that gives an error over there the posting is possible
I'm in the same boat. 2011 has a few strange glitches I can't solve. OpenMandriva is taking a long time and Rosa is a bit too new, too whittled down for me to just jump ship. OTOH, there's no telling when OM will be out or what it will be like, so I'll probably put some time into Rosa before then.
Yup Looks like we are all in the same boat. OM needs to be better than 2011 - if it is just a copy then