I think it may be a stretch to conclude from this that the acquisition of Infineon's wireless chip unit was a bust. Chip companies are always looking to bolster their capabilities when they can. If Strauss is right that this unit's mobile communications transceiver and design team is probably the best standalone RF team in the world, perhaps Intel just wanted to grab the talent.
A spokesperson from Intel has emailed me to say: "I can confirm for you that Intel acquired certain assets of Fujitsu's U.S. RF group to expand our mobile capabilities. The transaction closed in July."