Best Siri Alternative for iPhone 4?
Must agree that you can't replace and use just one app to duplicate in what Siri can do.
So here are my top3 must have for Siri replacements:
VoiceTexter - Stop typing. Say it!
Assistant - Voice Controlled Time Management
With those three you can come really close in what Siri does. Now of course there are a few things that Siri still can do that we just can't do.
If you really want I would also check out Vokul as well. However, I find myself using VoiceTexter way more for the same task.
If you are interested I have some podcast in what I've mentioned above:
VoiceTexter: the iOS App that Replaces Typing With Speaking
Assistant: Enables Those Without Siri to use Their Voice to Create and Manage Calendar Events
Questions and Answers With Evi
Vokul Revisited: Bigger and Better than Before
Hope that helps you out!