It goes without saying that most will start using the Indigo as the delivery platform once released due to its intensive focus on SOA, the question remains whether one should focus on Indigo or the ASMX/WSE3.0 at this point? (both are in beta releases). Aaron's blog item, Today's Web Service Stack: ASMX 2.0 + WSE 3.0 compares by listing out the comprehensive feature set supported by Indigo and ASMX/WSE3.0. My gut feeling is to shakeup a little and start concentrating on Indigo keeping in view the advantages Indigo brings in. Indigo offers most choices for the enterprise. But its a consolation for the others who decided to stick in at this point with WSE that they can flex whenever they decide to move to Indigo with ease, since the feature set more or less complements rather than competing.
Today's Web Service Stack: ASMX 2.0 + WSE 3.0