the pop3 solution is the only one, if the company does not have dial-in facilities for their network. If they do, she could dial in from a pc or laptop, and sync the MDA compact from this.
there are some software options, but they are all expensive corporate, e.g:
http://www.e-s-e.co.uk/intellisync/
note that exchange 2003 SP 2 and windows mobile 5 will have push capabilities as standard, but her company will still have to set it up. Not sure if the MDa compact will have an upgrade option:
http://blogs.msdn.com/jasonlan/archi...22/454717.aspx
rgds