We're in for another bout:
Rumor: Apple planning cloud-based iWork suite for iPad to fight MS Office
WordPerfect couldn't do it - Open and Libre Office haven't done much. There are far more Windows PCs than Apple - Some work can be done on Ipad - but what about companies who won't use Apple's/MS/Android cloud? So somewhere all this info is going to have to go somewhere. Some can afford storing their own data, some may feel that the usual services aren't secure enough, plenty of reasons.
It probably will happen eventually, but in a way we don't expect.