Infosys (INFY -13.5%) is plunging after delivering a weak FQ4 report, and is taking other IT outsourcing names down with it: WIT -3.7%. CTSH -2.8%. SYNT -2%. ACN -1.5%. HPQ -2%. Also hurting is Infosys' guidance for FY13 revenue of $7.55B-$7.69B and EPS of $3.12-$3.17 (consensus is for $7.96B and $3.25). "The year ahead looks challenging for the IT services industry," says the company's CEO. Are cloud services part of the problem?