There is a massive consolidation happening in the Industry. Prior to this acquisition, the only true "End-to-end" solution providers in the global market were HP and Huawei (since IBM got out of the PC and Server game). HP firmed up their position recently by acquiring Aruba, leaving Ruckus as the only independent wireless vendor of any note. Huawei already make pretty much everything by cloning what they perceive as "the best of the US".
Dell has been trying to become a player in this area; they bought SonicWall and Force10 a few years back and have recently started bringing out a slew of cutting edge productions in the networking and security space but they didn't have their own storage solution (the big pieces of "end to end" - ignoring PCs, etc. - being Servers, Storage, Networking and Security.
The interesting casualty in this merger is Cisco, who seem to be sucking hind-teat for the last several years. Their Firewalls were obsolete crap and they missed out on acquiring Palo Alto (what a mistake that was!!) and so bought SourceFire which is only part of a solution. Their wireless was crap and they couldn't buy Aruba so they bought Meraki which is only part of a solution. Now they are the only "Data Centre" vendor that doesn't have a storage platform; what's more they were heavily invested in VCE (VMWare, Cisco, EMC) which means unless they get really chummy with HDS, they will be out in the cold with storage as well (and HDS are also only part of a solution in comparison with EMC or HP's storage suites).
HP will take a hit because of their big investment with VMWare but even there, Microsoft's market share in Cloud/Hypervisor technology is constantly growing and the HP-Microsoft partnership is still very solid.
This will give Dell a very solid Cloud platform (vCloud Air) and really cement their place as #2 overall behind HP. It will be interesting to see how Dell - as a company that doesn't have to server up quarterly reports to shareholders - will act in this position.