There was always the nagging suspicion that tablet devices could come with built-in phone technology, although to talk on something so large is definitely socially awkward. Well, the Dell Streak 7 being an Android 2.2-powered tablet with an NVIDIA Tegra 2 processor, is actually a large smartphone device that can hook up via 3G and make phone calls, although there is no official support for phone functionality since it is currently being offered by Dell and T-Mobile as a standalone tablet with 3G and Wi-Fi connectivity. Jenn K. Lee at StreakSmart uncovered an interesting feature hidden inside, where tapping the phone icon to open the contact manager, you will be greeted by a phone-like user interface. This lets you bring up a dialer, display voicemail and even initiate phone calls. There is just one problem with this – calls will fail after a split second. Do you think future Streaks will come with built-in phone functionality, or is Dell holding this back to introduce it in a future firmware update?