What is IBM eyeing for with Blade acquisition?

Blade RackSwitch products include:
RackSwitch G8100 and G8124 10G Low Latency Switches
RackSwitch G8000 1-10G Aggregation Switch

Blade Server Switches
Blade embedded Gigabit and 10 Gigabit Ethernet switches are available for IBM. BladeCenter, HP BladeSystem, NEC SigmaBlade and Verari BladeSwitch to consolidate server I/O, enable network virtualization, and reduce data centre complexity by adding network intelligence within the blade server chassis.

Blade's switch modules for IBM:
BNT 10-port 10G Ethernet Switch Module
BNT 6-port 10G Ethernet Switch Module
BNT 1/10Gb Uplink Ethernet Switch Module
BNT Layer 2-7 Gigabit Ethernet Switch Module
BNT Layer 2/3 Copper Gigabit Ethernet Switch Module
BNT Layer 2/3 Fiber Gigabit Ethernet Switch Module

Blade's switch modules for HP BladeSystem include:
HP 10Gb Ethernet BL-c switch
HP 1:10Gb Ethernet BL-c switch
HP GbE2c Layer 2/3 Ethernet blade switch
HP GbE2c Ethernet blade switch

Blade's switch modules for NEC SigmaBlade include:
NEC 1Gb Intelligent L2 switch
NEC 1Gb Intelligent L3 switch
NEC 10Gb Intelligent L3 switch

Blade Network Management and Virtualization Software Products
SmartConnect with VMready
BLADEHarmony Manager

With inputs from Wikipedia and Reuters