Android supported architecture - ARM, Intel , MIPS

Android binaries can be generated for ARM , Intel & MIPS architectures. However as per ARM's report, their processors are used in 95% of the mobile handsets

http://ir.arm.com/phoenix.zhtml?c=197211&p=irol-reportsannual (page #23)

Given that, is it worth the effort to support your App for Intel and MIPS architecture. Though it is configuration option, it is the additional SQA time to certify the devices based on those designs.