Google’s Android Market is seeing some changes in the final hours before the phone’s debut. Many of the apps that had been added to the storefront disappeared this week, and a handful of big-name offerings popped up in their places. Imeem, Shazam and MySpace are among the services with applications now available. The first Android-powered phone, T-Mobile’s G1, is set to launch Wednesday. The phone’s seen plenty of hype and speculation leading up to its release, and app availability is certainly an area the industry’s been watching.