Meego will be the most powerfull open source OS based on Linux ever made :

- MeeGo phones are in the works
- MeeGo tablets will also come (except wetab already exist)
- Netbooks and Internet-connected TVs (IPTVs).
- Cars with MeeGo-powered entertainment systems
- MeeGo will be incorporated in places as diverse as digital signs, kiosks and ATMs.
and Fisher said Intel is in talks with at least one other company. So Meego therefore could be used by other major phone brands and computers cies.

Briefly, personally I'm not worried about the future of Meego.