Blackberry OS 5.0 Features leaked…
Some of the features are:
Flag messages and set reminder times.
View personal contact subfolders and edit contacts.
View and use contacts that are in public folders and copy them to your local contact list.
A file browser to access shared network locations to open, add, or save documents.
Forward meeting invitations and calendar entries.
Ability to add, delete, move, or rename personal folders.
Ability to view personal distribution lists in Outlook contacts.