After having been on pre-order for three months, my ViewSonic v350 has finally arrived. I popped in my two SIM cards (one contract, one pre-pay, one is UK, the other CH)
Though I believe professionals when they say the spec isn't break-though, I find it totally adequate (I am a beginner to Android). The handset is sleek, well designed, professional looking, light. The touchscreen is responsive, solid and more-than acceptable resolution. The OS is fast and contains all I could want [for the moment...]. The graphics are great and you-tube videos play perfectly.
And yes - the connectivity is exceptional! Both SIMs work flawlessly, simultaneously, the WiFi connection is fast. The 3G is good too and bluetooth is on there for good measure!
If, like me, you need Dual Sim and want a smartphone. This device is worth serious consideration.
I have a tiny gripe that the battery did not last as long as I expected, but the wonderful Android OS helpfully told me that my hour scrolling around on Google Maps used all the juice... Fair enough.