In general, I find Evernote tables to be poorly implemented. I would much prefer that they leave the simple tables alone as they are easy to use for a basic table that a user might need. Going forward for a proper solution, they should add embedded Google Doc spreadsheets in a scrollable frame inside a note for advanced table use This is a far better solution then having the Evernote team waste their time to re-invent spreadsheet features for their existing tables.
I am only a web user, and I have been frustrated by poor table/spreadsheet support, so I've been working on a Greasemonkey script to embed a Google Doc spreadsheet into an online Evernote page. See the screenshot below.
It contains an embedded Google doc spreadsheet in my Evernote note page. It's a live spreadsheet, in that changes made in the spreadsheet are also stored back into Google Docs and changes made at Google Docs are reflected into the Evernote page.
I'm making this my own solution for now, until Evernote adds something permanent along these lines.
Pros: easy, full Google Doc spreadsheet integration, live data Cons: custom solution, possibly not supported in desktop clients, not available and/or difficult to do on small screen mobile clients, and spreadsheets are not searchable.