Originally posted by another user
PlayStation Download Manager / Booster is an application designed to increase the download speeds of the PlayStation Network, it can install both free and paid content as long as you’ve paid for it.
In order to create a speed boost, it creates multiple segments which will draw data from the servers using multi-threading, this allows you to achieve the maximum speed of your line; unlike the PS3 which uses only 1 transfer.
Your PC can also be faster at downloading in general due to several factors, including it’s connection method, processor speed, RAM and TCP Optimizations.
Snippet from change log: [3.83]
1) Support added for web browsing, some image glitchs (Fixed by disabling .PNG cache)
2) TV on demand is now working (Excluding BBC iPlayer – Unknown reason, BBC’s fault. )
3) Support for premium member login / logout
4) Proxy no longer crashes when launch web / folding at home (F@H won’t load work loads still)
5) Several stability changes
6) New toolbar at the top, for easy to find controls.
7) Youtube can now be watched via the browser
(New Models) Sony Bravia TV’s can connect via the proxy for most services
9) Playstation Portable support has been confirmed (Tried on my PSP)
10) Designed to work with the NGP from Sony (PSN should work the same, in theory.)
11) Added support for 10 languages (Including English)