Startup Idea: Evernote for Spreadsheets

Evernote-Excel

Someone needs to make this or Evernote needs to integrate spreadsheets into their platform, because my current spreadsheet experience is pretty poor.

I currently have 13 Excel Spreadsheets open, 6 Google Doc Spreadsheets and 2 files open in CSV file editor.

Why is there no solution for me to manage this?

Here are the reasons I want this:

1) Navigation
Using Windows 7, Excel makes me click twice to change sheets, I cant split excel spreadsheets across monitors, and I am switching between excel / chrome / csv editor. Confusing and slow. With an Evernote esq app, I would have everything in one place, and could spawn off spreadsheets into new windows to do with what I needed.

2) Speed
Google Docs uses a TON of memory and I have no way to easily look up or add to spreadsheets.

3) Search
Using an Evernote style app, I should be able to insta-search any spreadsheet, or any bit of data in any spreadsheet. This would make finding data from and adding data to spreadsheets much faster and easier.

Is this something you think you would find useful?