FieldTest, an application that is supposedly for Nokia engineers only, is now available for all who have freed their phones. To be honest, I don't really know what the capabilities of this app are and exactly what new doors it opens for us but there seems to be a lot of excitement over this development over at IPmart and Symbian Freak.
Currently, the application can only be installed manually. This means all the files must be copied and pasted into their correct directories. I'm sure there'll be a convenient .sis file soon enough.
NOTE: You WILL need to have a hacked phone for now!
Here's the file containing everything you need. Just install the .sis file, making sure you either sign it with a certificate with all capabilities or simply hack your phone.
If anyone knows what types of cool stuff we'll be able to do with this app, please leave a comment below!