I don't want to get the sales pitch call so I don't use their service. I do use mint and their investment tab is pretty mediocre.
I recently set up a google spreadsheet which will do 20 minute delay tickers "=googlefinance(ticker)" and I really like the way I can use that to summarize my info. I use mint to monitor my total shares held (accounting for ongoing 401(k) contributions and re-invested dividends) and manually adjust my spreadsheet. They then have a decent list of characteristics to monitor, like ytd return, 52 week return, etc.
I set up a spreadsheet on Google Drive after reading this post. I will have to manually adjust changes in the number of shares but that shouldn't be too bad.
That's the tradeoff for not having to store your login credentials with a third party.
I also updated my other accounts on my Vanguard account and they calculate my overall AA pretty quick, into a nice pie chart.
What would be nice is if there's a way to chart my totals or total net worth over time.
I'm wondering if setting up a portfolio on Google or Yahoo Finance might have such charting.
Otherwise, I see more iPad apps, like Wikinvest Portfolio HD, which also requires setting up an account and storing all your login data with it.
Another free one is Real-time Stock Tracker, which sees to be overall for stock tracking but also has portfolio features. This one may be more like entering data manually rather than have data pulled down from your accounts.
Edit -- Okay Google Finance does track your portfolio prices and you can compare the chart against the S&P and other indices over time. Only downside is that you have to store it on your Google account, which means they can data mine the investments you have and so on.
I'm more leery of a company like Google, which will sell you out to advertisers, than maybe Yahoo. There is no app, so you have to view in the iPad browser. Hmm ...