Here's some of the finer details of PS3 FW Update 4.40:
"System software update 4.40 will allow users to download content purchased from our online store to their PS3. This feature is not available yet and will be activated in May 2013.
Keep an eye on eu.playstation.com for a detailed guide explaining how to make the most of this feature.
The wireless stereo headset (CECHYA-0080 / CECHYA-0086) and the stereo headset (CECHYA-0088) now support PlayStation 2 Classics that have been downloaded from PlayStation Store.
System software stability during use of some features has been improved."