mono for linux有没有64位的
另外，xsp for linux有没有64位的

如果没有，在64位linux加能不能稳定运行mono32位版本

------解决方案--------------------
Will Novell port Mono to my architecture/operating system? 

In the past Novell has done ports of Mono to new architectures and operating systems. We have done this for internal Novell needs (x86-64, Itanium and with Neale's help to s390, s390x) or for customer needs (PowerPC). 

Novell is certainly open to adding support for new architectures, but there are a number of variables: is the port going to benefit a large segment of users, hardware requirements and adequate funding.

------解决方案--------------------
Linux没有所谓WOW64，所以64位Linux上面只能运行64位的应用。

现在Mono已经支持x86-64的Linux平台，具体你可以从下载页面查看详情，

http://www.go-mono.com/mono-downloads/download.html