Updated analysis of some two-body charmless B decays -: art. no. 074035

New data from the BaBar, Belle, and CLEO Collaborations on B decays to two-body charmless final states are analyzed, with the following consequences. (1) The penguin amplitude which dominates the decay B+-->pi(+)K(*0) has a magnitude similar to that dominating B+-->pi(+)K(0). (2) The decay B+-->pi(+)eta, a good candidate for observing direct CP violation, should be detectable at present levels of sensitivity. (3) The decays B+-->eta(')K(+) and B+-->etaK(*+) are sufficiently similar in rate to the corresponding decays B-0-->eta(')K(0) and B-0-->etaK(*0), respectively, that one cannot yet infer the need for "tree" amplitudes t(') contributing to the B+ but not the B-0 decays. Statistical requirements for observing this and other examples of tree-penguin interference are given. (4) Whereas the B+-->eta(')K(+) and B-0-->eta(')K(0) rates cannot be accounted for by the penguin amplitude p(') alone but require an additional flavor-singlet penguin contribution s('), no such flavor-singlet penguin contribution is yet called for in the decays B+-->etaK(*+) or B-0-->etaK(*0). Predictions for the rates for B+-->eta(')K(*+) and B-0-->eta(')K(*0) are given which would allow one to gauge the importance of these flavor-singlet penguin amplitudes.