Everyone who installed spire from Cydia and now are Waiting for a Proxy Host, those i am only able to disappoint! I dont think there will be something simillar available because we cannot Build Server like Apple does!
There are so many Users with an iPhone 4 who want Siri! But who can setup a Server which is big enough for Traffic that thousands of iPhone 4 User will make!
So dont expect a Proxy Host in Time!
Maybe someone Finds another Solution