So, you've downloaded Spire, but you want to get Siri functionality.
Spire is the Siri GUI port that was brought to use by Grant Paul
and Ryan Petrich
. It works on any iOS 5 iPad, iPhone, or iPod touch (excluding the iPhone 4S since Siri is already there). It isn't a full port; it is a GUI that lacks Siri functionality until the user gets that functionality themselves. There are a few ways to get that functionality. One way is to set up your own Siri server and use your own (or someone else's) iPhone 4S as the go-to to using Siri. This means that you will need to update your own server with new iPhone 4S keys daily.
If the daily routine of updating your server's keys sounds absolutely cumbersome to you, then there is the painless option of using Siri server hosts. Almost all of them support Spire. There are many free and