Gen2 refers to the new partition layout used on ZTE Blades with Froyo
It increases the Recovery and Boot partitions to more reasonable sizes, and crucially, updates the Radio firmware giving HSDPA, stronger reception, and 850MHz support
However this breaks compatibility with Gen1 ROMs
There are two Gen2 ROMs; Swedish Spring (Android 2.2, based on Swedish Froyo update), and CyanogenMod7 (Android 2.3.4, Community built Android distribution)
If your Blade came with Android 2.1, its probably Gen1 - in doubt? Ask Mr Pigfish (Android app)
Updating or not? See Below
It increases the Recovery and Boot partitions to more reasonable sizes, and crucially, updates the Radio firmware giving HSDPA, stronger reception, and 850MHz support
However this breaks compatibility with Gen1 ROMs
There are two Gen2 ROMs; Swedish Spring (Android 2.2, based on Swedish Froyo update), and CyanogenMod7 (Android 2.3.4, Community built Android distribution)
If your Blade came with Android 2.1, its probably Gen1 - in doubt? Ask Mr Pigfish (Android app)
Updating or not? See Below