I remember all too well the ordeal NXT had, as well as DGEX when it came to attacks not just in terms of FUD, but also in terms of network attacks, both ddos and other maliciousness against the currency.
If NEM causes a big enough stir, it's also going to get big enough attacks from those who deem it a threat to the current status quo of currencies.
This is why i'd like to see some big initiatives to help people set up clients on various platforms. I for one, will be getting a Rasberry Pi or two just in case.
I agree, luckily the client is already really easy to get working on a few types of devices, and it isn't even one click yet. I plan on getting a raspberry pi and maybe an android stick before launch.