Neither tablet has a name as of yet, and neither was functioning when we saw them. Acer is planning to release them, however no date was specified. No other information concerning operating system or processor was officially released.
One thing we did notice was that the 4.8-inch tablet's screen had a crazy aspect ratio, but Acer was unable to confirm exactly what it is.
Take a look at the pics to get an idea of the connections and features each will sport when released (as well as a possible name for the 4.8-incher).