Lam Research ( LRCX) downgraded at Barclays. Rating lowered to Equal weight from Overweight. Price target lowered to $28 from $30. 2009 EPS estimates lowered to -$1.02 from -$0.42. Palm ( PALM) upgraded at Merrill/BofA to Buy. Expect a successful launch of the Pre smartphone with Sprint Nextel. P.F. Chang's ( PFCB) upgraded at Goldman Sachs to Neutral from Sell. Upgrade is a result of relative underperformance vs. CAKE since March 11. Believe upside to out-year earnings estimates is already priced into shares. Price target raised to $24 from $22. Weyerhaeuser ( WY) upgraded at Goldman Sachs to Buy from Neutral based on valuation, impending upturn in U.S. housing market and seasonal improvement in demand for wood products. Believe housing market is within 6 to 9 months of showing significant improvement. Price target raised to $43 from $23.