Adobe’s Online Office Productivity Suite:
Photoshop Express (Photo Editor)
Buzzword (Word Processor)
Sliderocket (Presentation Software)
A lot of these are still betas, some much rougher than others…
NOTE – Just to clarify, Adobe hasn’t acquired Blist or Sliderocket. But they don’t need too… their technology is beginning to provide almost a full online ‘light office productivity’ platform.