[BioC] Converting between old and new annotation packages?

[Jeff Gentry]

>    Well, you can always get a simple map from your IDs to Entrez gene
> from your current package, and then use that as input, so you don't
> really need to go back to the originals (granted you may want to go
> back as things are likely to have changed since the mapping was done).  
> But at least if you cannot recover files, you can still build
> something.

That's a good point - if I come across something where I can't dig up the
old info this might be the way to go.  And another good point on the
changes in maps anyways making it wise to just start anew anyways.

Thanks
-J