The LG eXpo managed to turn heads when it first arrived on the scenes with its projector add-on that really set it apart from everything else available in the US market. Recently though, customers are having a difficult time finding this smartphone both in-stores and online – AT&T still insists that it's out of stock due to “strong demand.” Of course it would make sense for it to be that way when you consider that it's a smartphone that really captivates consumers with its breath of features and impressive listing of specs. However, there is a deeper reason why LG and AT&T are having a difficult time keeping stock levels up. Insiders are pointing to a different story with the LG eXpo – they're hinting that there are production issues that are preventing it from getting into stores and the hands of consumers. Art Stewart, vice president of wireless products at sensor maker AuthenTec, which is the provider for the fingerprint sensor found on the device, says that it has “antenna issues” that are complicating the the production of it – going on to say that “We shipped thousands of sensors to LG...but there has been a delay.” The LG eXpo is a prominent handset in the Windows Mobile front and separates itself from the LG Incite which was released around a year ago and proved to be a flop for them. There are obviously people out there that really want this device, but these antenna issues are really preventing LG from attacking the US smartphone market.