At the LG Transformers booth, amongst all the news about Transformers phones, there is a piece of the All Spark wrapper up safely in a canister, as seen in the Officially released movie screenshot. Picture from the booth comes via TLAMB:
Original LG press release explaining the tie-ins:
Visitors at the LG Mobile Phones booth (#4100, Central Hall) will have the opportunity to meet renowned film director Michael Bay on Thursday, April 2, at 2:00PM (PDT) as he greets fans and signs posters from the new movie. LG Mobile Phones will also unveil design renderings of a LG limited edition “Transformers” Versa phone, which will be made available only through consumer promotions as part of their overall movie tie-in campaign.
Prior to the film’s June 24 release, LG Mobile Phones will reveal advertising, retail, online and other consumer electronics initiatives utilizing the film as a key theme for the marketing campaign. The LG limited edition “Transformers” Versa phone, along with the company’s premium line of handsets, offers the latest in mobile technology, allowing people to change their mobile life using one device. Many of these LG Mobile Phone products were used during the making of the film.