3) Once you enter all your details, you get the confirmation of your request
4) You will also get an e-mail that confirms your trial request has been received, but that you need to wait for the activation e-mail.
5) You can already login into your dashboard at cloud.oracle.com to get an overview of your services and trial requests.
It's a week ago I subscribed for the service, but so far I didn't get an activation email yet.
I was part of the beta-group the previous months to test out the database service (fully functional). Compared to that beta, the look and feel changed of the dashboard. In order what to expect once the service is activated: the APEX version in the Database Cloud is APEX 4.1.1c, a special edition of APEX 4.1.1. The closest you can get to that release yourself in your environment (on premise) is installing APEX 4.1.1 and apply the patch that comes with the Oracle Application Express APEX Listener 2.0 (EA2). That will enabled for example Restfull Webservices.
In the Database Cloud you will also see the packaged applications, like you have in APEX 4.2 (as you can see on apex.oracle.com at the moment).
Once the Trial license expires you will need to pay for it... here are the prices as they currently stand:
During my beta testing there was one catch... some database functionalities are turned off (for now) e.g. Locator, Spatial and outgoing network services straight from the database. That basically means that for many applications we can't use the cloud just yet as we use locator intensively and send out mails from the database too. It also remains to be seen how fast Oracle will upgrade the Oracle Cloud to APEX 4.2 once that is production.
Oracle has also many other cloud services, one in particular I would be interested in: the Oracle Social Network! I had the chance to play with it (and integrate in APEX) during OOW, but I'll talk more about that in another blog post.