On the iPhone, I am viewing it in the mobile version. Now if I click on the standard version, the standard site will show up. Now how can I get back to the mobile version? What is the best way to do this?

I hope someone has a better way to do this, but it does work if your go to settings, Safari, Clear Cookies and Data.

You can put a link on the standard site.
Joomla back end admin
extensions > Module Manager
look for module name "Select Markup"
make a copy of this module
on the copy publish it to position footer in your normal site.
make sure that
parameters > Module Parameters > Hide for PC browser is set to no
save

now when you go to standard view from the iPhone you will have a way back.

you can also use
www.mysite.com?device=iphone
but you wouldn't expect the site visitors to guess that.