Touch interface in mobile phones, that started as a new trend with the launch of Apple iPhone and LG Prada KE850 , is becoming mainstream.

LG will soon have 3 touchscreen models LG Prada, LG KU990 Viewty and LG KS20 on the market, Samsung will have two - Samsung P520 Armani and Vodafone Samsung F700v, Nokia confirmed that it’ll have something interesting with touchscreen next year, Motorola is rumored to be working on an advanced smartphone that may include touch interface.

That leaves only Sony Ericsson, among major cellphone vendors, that did not at least hint about it’s plans with touchscreen devices. That’s probably about to change, as recent Sony Ericsson patent application called “Programmable keypad“, indicates.

I can’t say that I’m very impressed with the results of Sony Ericsson efforts. It really reminds me about the idea behind Pantech Sky IM-200 and it certainly lacks the ingenuity Sony Ericsson demonstrated with PSP Phone, when they experimented turning cellphone into a gaming device.

But, hey, it’s only their first effort that become public, and I’m sure that Sony Ericsson will be able to come up with something much more interesting in the near future.

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