Mergers & Acquisitions, Feb. 11 4Acme Packet Inc.Bedford, Mass.Oracle Corp.Redwood City1677.46CashPendingDIVFeb. 8CMG Mortgage Insurance Co.San FranciscoArch Capital Group Ltd.Hamilton, Bermuda300UndisclosedPendingDIVFeb. 6Channel Intelligence Inc.Celebration, Fla.Google Inc.Mountain View125CashPendingDIVFeb. 6Romano's Macaroni Grill Inc.DallasIgnite Restaurant Group Inc.Houston55CashPendingACQFeb. 5Modified Polymer Components Inc.SunnyvaleBiomedical Structures LLCWarwick, R.I. UndisclosedUndisclosedPendingDIVFeb. 5Hello Direct Inc.San JoseSynergy Communications ManagementNew HampshireUndisclosedUndisclosedPendingACQFeb. 4HomeGain.com Inc.EmeryvilleReply Inc.San RamonUndisclosedUndisclosedCompleteACQFeb. 4Bluefin Labs Inc.Cambridge, Mass.Twitter Inc.San FranciscoUndisclosedUndisclosedCompleteACQFeb. 7Adelaide Mushrooms Nominees Pty Ltd.Monarto, AustraliaPaine & Partners LLCSan MateoUndisclosedUndisclosedPendingACQFeb. 7Cosmic Circuits Pvt Ltd.Bangalore, IndiaCadence Design Systems Inc.San JoseUndisclosedUndisclosedPendingACQFeb. 7Systech Integrators Inc.San JoseSofttek Integration Systems Inc.AtlantaUndisclosedUndisclosedCompleteDIVFeb. 4IGN Entertainment Inc.San Franciscoj2 Global Inc.Los AngelesUndisclosedUndisclosedCompleteACQFeb. 7ShowUHow Inc.San DiegoSellPoint Inc.San RamonUndisclosedUndisclosedComplete1 ACQ = acquisitions; DIV = divestitures 2 in millions