Typically, most pages don't look very good on a mobile phone, but Opera has done a good job formatting and compressing the content for handhelds.
This agreement shows that RIM sees the BlackBerry as a product that is platform independent. They are covering all of the bases by supporting both PC and Mac systems, even though Apple is not considered a major player in the business market.
The key for the company is developing devices that users need, with features for business users and consumers, as opposed to the BlackBerry, which is focused tightly on information and e-mail.
This partnership brings together two very strong brands, both of which will benefit from the agreement.