What I expect from Office 2010
1. I'm only really interested in the Office Web Client. The desktop version has had it's time, it's too big, takes too much time to install and I need a license for every single machine I use. The Web Client fits with my mobile style of working.
2. The web client needs to be fast and work in any browser. This seems to be obvious, but in practice Microsoft still needs to do a lot of work to make all their web properties work correctly on browsers other than Internet Explorer. If the performance of Live Spaces and SkyDrive are an indication to go by, then Microsoft still has some work to do. At least there is good hope, because Bing is good and hopefully a permanent step forwards in the right direction.
3. The web is about embedding, widgets, and mash ups. I expect the Office Web client to come with the capabilities to embed Office documents for viewing, or even better editing, in any website I manage. This would for instance allow 'SlideShare' kind of embed able presentations in enterprise systems.
4. The web is about sharing and collaboration. I expect the Office Web components to really excel in the abilities to share and jointly work on documents and presentations with others. The key reason for using Google Apps today, the collaborative features. This without any doubt of course also includes a full web enabled communicator and/or messenger client.
5. The web is about open API's. I expect the Office Web to come with an API that allows me to manipulate my documents in the cloud.
I can't wait to get more detailed information and get hands on experience.