Remember when dual-core was a new thing? It seems like eons ago that the LG Optimus 2X became the worlds first smartphone that packed a multi-core processor. The hype it built thanks to that tag led to quite a few purchases, but it turns out they lied to the customers in Korea regarding the type of flash used, and have now been forced to apologize.
LG used a regular LED flash, but publicized that the 2X had a Xenon flash. Some opportunists have now asked for refunds or compensations for the false advertising. Honestly, the only reason anyone would want a refund because of a Xenon/LED flash issue is that they know something much better is available in the market.