More info from Bioware:
Hi Everyone.
Some people are still questioning the Dragon Age II DRM (Digital Rights Management), specifically whether or not a system called SecuROM is used or not.
Dragon Age II does not use SecuROM DRM. Any statements made to the contrary are false. The confusion stems from the use of Release Control which is also made by Sony. Release Control was employed to protect the game against usage prior to its release date. These are two different technologies with different purposes. Release Control in no way affects users’ rights to access after launch, and its executable automatically deletes itself once the Release Control process is finished. For more information, please visit Dragon Age II Support.
FAQ
Do you use SecuROM DRM?
No, the game does not use SecuROM DRM. Dragon Age II uses a technology from the Sony SecuROM technology group called Release Control. While Release Control is made by the same development team as SecuROM DRM, Release Control is simply a technology that involves a one-time startup check with a server to confirm that official street date for the game has passed. Once the street date has passed and the check is done, this software is removed.
What are the differences between SecuROM DRM and Release Control?
Among other things, SecuROM DRM is a technology used to prevent against unauthorized copying and access of software, and may be disc based or involve online activation.
Release Control is a completely different product with a different purpose. Release Control’s sole purpose is to protect software until its street date, by doing an online server check on initial game startup to confirm the street date has passed, at which point it removes itself.
Why did I see a pop-up message that says SecuROM when I installed my game before the official release date?
Release Control is a separate Sony product from SecuROM DRM, but is developed by the same technology group and support is provided through a common Sony customer support site. That is why SecuROM branding and the SecuROM support URL appear in Release Control.
When my installation and online check are completed, why are there files remaining in my temp folder saying SecuROM?
Both SecuROM DRM and Release Control products are made by the same company, and as such they share a small number of common utility library files. This is common to any software development – for example, developers often use Microsoft common libraries for Windows-based software or re-use internally created libraries with a discreet purpose across multiple products (e.g. connect to a server), rather than duplicating or re-writing the same code for each product.
Although Release Control has an auto-removal process, these inert library files are left in a windows temp directory. This is also common practice with software. But these files are indeed inert and you can easily, manually remove them by doing a simply temp folder cleanup. There are no SecuROM DRM product files installed.
We hope this clears up any outstanding questions about Dragon Age II DRM. 
http://social.bioware.com/forum/1/topic/141/index/6509752
Seems like a confusion. However its not secuROM and that's what matters.
