A recent Google Docs Blog post details enhancements made to the Google Docs site that bring spreadsheet editing to the iPhone and iPod Touch. Users had previously been able to only view spreadsheets.
According to the blog post:
"Today, I'm happy to announce that we've made mobile access even better by adding new capabilities with List View for spreadsheets. You can quickly view, edit, sort, and filter your spreadsheets on a variety of mobile devices including Android-powered devices like the T-Mobile G1, the iPhone and iPod touch, and the Nokia S60."
This new feature is even available in all 38 languages supported by Google Docs spreadsheets. You can access these new features from your mobile device by visiting m.google.com/docs or docs.google.com/a/your-domain if you are using Google Apps.
At press time there were no other announcements as to when editing might be added to other supported document formats on Google Docs.