What are the most important issues during offshore software development

Hi all,

Offshore software development has seen tremendous growth in the last few 
years. This particular kind of outsourcing occurs when the contracting 
parties are in different countries and the software is developed in the 
developer's country, and then shipped to the buyer's organization. 

So to understand well about offshore software development, I just raise 
this question. If somebody had such experience and you want to share your 
story, that is awesome!

Thanks.

Best Regards,
Forrest