pogoplug series 4 vs esata sheevaplug

[zachofalltrades]

I've had a Tonido running ALARM for a couple of years now, and it has become clear that USB 2.0 is a bottleneck whenever I want to copy large files across the network, or when I want to enable more than one client machine to stream via UPnP. I have been looking around for a new low-cost device, and I am intrigued by the new pogoplug with space for a sata drive on top, along with eSata and USB 3.0 ports on the back. If it weren't for the step down to 128 MB RAM (from 512 on the Tonido, and 512 in an eSata sheevaplug), then I would be all over the pogo (on sale for $50). My alternative is to get an 'eSata MIMO(Sheeva) plug', but that is three times the cost at $150.
Does anyone with a series 4 have any buyer's remorse with regard to the CPU or RAM on that thing? Basically, I just want the device provide fast access to the disks. I might even just mount the disks via NFS and continue to run apps from the other plug where memory is not constrained.

[moonman]

For streaming, I think USB 2.0 is not an issue, while CPU may be. With v4 you'll be even more limited since it's slower CPU and probably ram will be the bottleneck.