Google presentations

Google is adding presentations to their Docs and Spreadsheets package.
"Presentations" is a new addition to the Google Docs and Spreadsheets (GOffice) where docs are saved to an online storage facility and can be accessed from any computer. Owners of the documents can edit docs and can grant access to collaborators who are able to modify docs and invite more collaborators; and viewers who can only view the most recent version of the documents or spreadsheets. It seems that about 99% of the time GOffice can replace MS Office. But GOffice has "intarwebbiness", is free, and is so easy to share!