Barnes & Noble’s Nook eReader will hit shelves in the United Kingdom in October. Models slated for U.K. release currently include the Nook Simple Touch and Nook Simple Touch with GlowLight. The first overseas launch of the device comes as Barnes & Noble is seeking to fend off competition from Amazon’s Kindle.

Nokia isn’t the only company scheduling a device unveiling for Sept. 5. Motorola Mobility and Verizon Wireless have arranged a press event for the same date, calling it the “day’s main event,” according to an invitation published by Engadget. Motorola and Verizon have a longstanding relationship on Android smartphones.

Zagg founder, chairman and CEO Robert Pedersen II has stepped down for unspecified reasons. Randall Hales, president and COO of the mobile accessory company, will serve as interim CEO until a permanent replacement is found. “No further changes in leadership are expected,” Zagg said in a statement.

Mobile marketing company Aixum Tec has been acquired by MobileBits Holdings Corp., a provider of content management solutions for businesses. The purchase price was not disclosed. Aixum is based in Switzerland and is used at “many thousands” of retailers across Europe. The deal is expected to help MobileBits expand its European presence.

Ethertronics today unveiled EtherChip 1.0. The new solultion is billed as a “building block” for RF front-end module chips from the Ethertronics chip division to provide more “smarts” to antenna and RF systems. EtherChip 1.0 leverages Ethertronics’ Air InteRFace Digital Conditioning (AIRFDC) technology to provide tuning capacitance; seamlessly adjusting the characteristics of a cellular antenna to its dynamic requirements – such as retuning for frequency shift, hand or head effects, or more bandwidth. EtherChip 1.0 is a silicon chip available for immediate integration by OEMs.