Google Spreadsheet Frustrations

I am enjoying my experience with Google Spreadsheets today as I get a presentation ready for tomorrow.  I have chosen to use this app rather than Excel for a couple of reasons:

• Really wanted to try out the app
• Is not a number crunching, intense spreadsheet
• Is a collaborative spreadsheet to work with my partner on

But the last point is the stickler: I can't work corraboratively with people that are not involved with the Alpha.  DOH!  How do I use the app for working with my business partners if they can't actually log in and use it?  Gliffy had a closed beta, but stressed the importance of group work on documents by opening it to partners you needed to work with.  I see the collaborative nature of Google Spreadsheets as a key differentiator and cannot experience that until my business partners are accepted into the beta.

Another issue I see looming for me: my Google experiences are all tied to my personal email accounts and not my professional.  If I choose to integrate any Google products into my professional workflow later on, I may be stuck having to run separate accounts.