In this week's charmingly tawdry app roundup: Voices, creepily modulated! Annoying trips to Kinkos, averted! Cats, artfully superimposed! Photos, easily shared! iPhone speakers, blown! Call of Duty, iPhone'd! Google Maps, humiliated! Certifiably good games, discounted! And more... To view as a single page, click here Voices: There are a few voice modulation apps on the shelves of the App Store, but none has captured Jesus' heart like Voices: Retro tape recorder and microphone, cute icons, simple touch interface, and sharing via Twitter, Facebook, and email, so you can spook everyone with that…