Sony’s planning an “electrifying announcement” for April 27th and we all wonder what they are planning to announce. However, it seems that a very in-dept source, when it comes to things like this, thinks that it has came up with the answer.

According to GameZine.co.uk, an Uncharted 2: Among Thieves demo/beta will be included on the inFamous retail disc, which would underline the “electrifying” statement.

But, from the business stand point, this could be attempt from Sony to increase inFamous’ sale, which we have seen with the Final Fantasy XIII demo included on the FFVII: Advent Children Complete Blu-ray.

But, there’s another idea rumor. Following recent rumors that Naughty Dog is developing competitive and cooperative for Among Thieves, it seems that Naughty Dog may want to give it a spin in a beta of some kind – seen with Crackdown and the Halo 3 mutli-player beta. However, we’ll have to wait until the 27th to see if this rumor is real.