UPDATED 12/06/12: Searching the Viera Shop Online through the TV smart app, they show several 4-6 QWERTY remotes available for sale that are compatible with this TV.
I recently (11/24/2012) purchased the TV and called Panasonic regarding the SMART TV feature and QWERTY keyboard remote. While the support person was very helpful with a couple of issues with setup, Panasonic has no announced plans to release a QWERTY remote for use with the TC-L55ET5; a MOST disappointing response. Lack of a QWERTY keyboard remote is forcing me to lean towards return. The ONLY keyboard you can hook up to the TV is a standard USB hardwired cabled keyboard since the TV does not support downloading/installing ANY device drivers (eliminates any wireless USB keyboard). You CAN use the Panasonic App for Tablets, etc. Very disappointing.