RF exposure.. Think about the toxins you breathe in everyday just walking outside.. Nothing to worry about. Other phones do have a similar warning it's just hidden.

The BB browser if mainly for mobile sites, try Opera Mini or Bolt see you like them more.

Spread Sheets, If you are a big document guy I would try eOffice or Docs To Go Premium.

Calendar Sync.. Only syncs with 4 things pick one, no alternate for that. May want to buy Outlook.