For all intents and purposes Nokia and Ovi are officially gone and their support for maemo platforms with them...
They don't care about you anymore than you care about them.
So pay no bother ...
If you do need anything Ovi (maps and such) or Nokia related head over to maemo-repos.com and the necessary catalogues are there if needed (thank that great gent while you are there...he's doing a stellar job keeping the vaults open) ...also there is a few links to Ovi map downloads I would suggest downloading for the n900....
like ummmm....the whole planet?
I got my back up.
Should be good for a few more years....un-updated...
after that it is marble for me ... I suppose....
So yeah...don't completely discount Ovi's usefulness...
Just be savvy...