Outsourcers will generally offer up disaster recovery/business continuity clauses in application/people based contracts that are derived from data center/machine based contracts. You can move processing from one affected location to another far easier than you can move teams.
The situation in Egypt is unusual – multiple cities affected at the same time, but it is a reminder for customers to think through onsite/offsite ratios, whether the vendors skillsets and staff are distributed across countries not just cities within a country, and what the SLA really means when social upheaval stops staff from getting to work for days, and even if they could, the telecommunications are affected.
