Today's smartphones promise more and more performance courtesy of their faster application processors, which also pack more cores than before. We already have 1.2GHz dual-core mobile phones available for purchase on the market, and things are looking great for the future. Nvidia is gearing up for the launch of the first smartphones and tablet PCs with quad-core application processors inside, its Kal-El Tegra 3 chip, to be more precise, but this is not all. Chip makers are also working on speeding up these processors, and the first 2GHz multi-core CPU might very well arrive on shelves as soon as next year. Thus, the emergence of a concept phone that packs a dual-core application processor clocked in at 2.5GHz should not come too much as a surprise for many. However, a fast processor is nothing inside a new smartphone if other hardware specs were not bumped up as well, but the said concept device would cover them all. Dubbed Sony Ericsson X3, the said handset comes from Frank Tobias, an enthusiast photographer and designer from Luxembourg. “So here's the Sony Ericsson X3. It features a 10.0 megapixel camera with HD-function up to 1080p,” he notes on his blog. “It's 4.2' touchscreen has a resolution of 540x920 pxls. It supports a 2.5 Ghz Dualcore-CPU. The internal memory capacity is up to 64 GB,” he continues. What strikes right from the start when looking at this new concept phone is the fact that there are no buttons at the bottom of the screen. However, it seems that things were intended to be this way. “Don't worry about that there's “nothing” under the touchscreen, there is a touchpad which shows the symbols you need. I hope it's OK like that,” the phone's designer notes. The Sony Ericsson X3 looks appealing, and would certainly make us want one, provided that it would arrive on shelves in the near future.