Is there still a demand for executables supporting i386? Or can I just build for x86_64 only? OSX 10.8 Xcode defaults to x86_64 only, but all versions before that I've had defaulted to universal. I'm concerned of occupying disk space just for this compatibility. Since many Macs use SSDs, I think it matters. Are there many Intel 32-bit Macs with Snow Leopard support?