The BBC's Duncan Munene in Nairobi says a strong contingent of police are trying to prevent clashes between rival groups who are facing off against each other in the area.

BBC: Kenya grenade attack: Somalis attacked in Nairobi

While the concept is not new, it is an area that is yet to take off and prominent names such as Oracle, VMware and Brocade have each opened their wallets of late and buying smaller niche companies to help establish position in what is expected to be a highly competitive market.

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