SourceExplore has been released into Cydia Store, It allows you to view the source code of any web page on the internet. Its great for developers as they can view the source of mobile website. What is even better it has its own URL scheme and uses source://.
SourceExplore is out in Cydia Store for $1.99
Using its own URL scheme allows you to open a web page from Safari by changing /linkout.php?url= to source:// to give you the source code of a website.