“According to Michael Wray, president of Mariner Software, the program is 80 to 90 percent complete and will include a number of impressive features, including the ability to view and edit Excel files in their native file format—no conversion needed. The CocoaTouch application will support spreadsheets up to 1,000,000 rows and 32,000 columns in size, as well as multiple sheets per document. It will even include support for charts and objects.
The application is not quite finished yet and there is no indication of how much is it going to cost however, I have a feeling this is going to be an anticipated application especially among the business realm.
Check out Macworld’s article for even more details about the application.