Is Sun Ray a suitable solution for system administrators?

My company is deciding if Sun Ray can be a viable solution for system administrators for additional level of security since Sun Ray clients are diskless...less worries about malware or virus...etc.
However, looking through Sun's available thin client machines, there is no selection of laptop form. As you can guess, sysadmins are mostly remote and on the go...it cannot be expected that they are always at their desks or homes to access the thin client machines. I understand the availability of the web client solution...however, have my doubts about that and how much would sysadmins actually embrace it.
On the other hand, the inability of copy & paste as they are currently doing with traditional thick clients can be problematic too. One use case is when they test and build config on their desktops (say notepad), then upload to server hosts...or opposite, when they need to download logs to their machines and investigate...
I am not going into questions about support of OS X and other tools sysadmins usually use...since the support of true remote access will be the biggest hurdle up front.
Any comments?

Hmmm. Very late to this conversation, but couldn't help to throw some change into the hat.
For casual use of light-weight, non-power hungry applications, running apps via SGD over a Sun Ray (soft client or not) is probably ok. But if you were to try to do this for normal users who need PC-like performance, you'd be delusional. Display information will travel over the network 3 times and you can't take advantage of any of the new, faster graphics capabilities of the newer Sun Ray's when you introduce SGD as the means to access Windows desktop applications.
To be explicit:
Sun-Ray -> Sun Ray Server uses ALP.
Sun Ray Server -> SGD uses AIP.
SGD Server -> Windows Server uses RDP.
If you deploy this widely, better go buy some stock in Cisco.
I'd use SGD only for remote PC/Mac/Unix users who need to bounce in from the wild west.
I'd use Sun Ray -> Sun Ray Servers + Windows connector (uttsc) for thin client access.

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