First, your enterprise has to have a Lotus Domino server to support the application. Existing users of Lotus Notes Web-access system will be able to use the iPhone version for free with their current license. New users will have to pay $39 per year for the Lotus license. Not a bad deal at all.
IBM also is releasing its Symphony productivity suite for Apple computers. Symphony, similar to Google Apps, includes a word processor, presentation application, and spreadsheet program.
If you think these new Apple-compatible applications are indicative of a new love-fest between Big Blue and the big Mac, you might want to remember that Apple used IBM's PowerPC chips in its computers for a long time. It appears that Apple's move to Intel processors didn't sour the relationship between the two. IBM spokesperson Mike Azzi said the two companies "have a lot in common. We're going to cross-pollinate."
I can only imagine that this is going to make a lot of enterprise users very happy, and create more headaches for IT admins as employees drag the iPhone in and demand it be supported for e-mail. However, this new set of software will likely not put a dent in RIM's enterprise dominance any time in the near future.