Trying to defend PLE's
Re: "How? What?" - "How do they get away with advertising these things as 200Mb when they only have a 100Mb ethernet port?"
Hmm, that's a point of contention for me. Turns out that it's 100Mb/s duplex, and in the three brain cells present in most marketing departments 100Mb (downstream) + 100Mb (upstream) = 200Mb (total). IMHO this is false advertising - like 802.11n systems that advertise themselves as 300Mb/s nets.
Re: "No point in buying them" - "They will be banned when Ofcom are replaced by a regulator prepared to enforce EMC law.".
Simple - just invite the Dark Lord (Mandelson not Valdemort) around for the weekend and job done. Or at least if past performance is any guide.
Re: "But how (EM) noisy are they" - "In the light of El Reg's recent article on the interference these devices can cause, should this not be mentioned in the review?".
Actually that article was mainly on the BT Vision boxes, not all PLE gear. As a very unscientific experiment I've had a radio next to my PowerLine Ethernet (PLE) units with no appreciable interference. But I appreciate YMMV.
That article also made mention that CB radio enthusiasts are getting bothered by PLE's. In which case my response is "haa-haa". I seem to remember a similar argument between CB radio and radio control modellers - and in that case the CB folks' response was "tough cheese" so nice to see the boot on the other foot now.
Re: "UPA or Homeplug" - depends what you want. There's a better choice of units for Homeplug (don't bother with normal Homeplug - go for the "AV" ones), but UPA offers the chance to upgrade without having to eBay your existing kit. I use Solwise Homeplug AV's to supplement my 802.11 WLAN and it works well (unlike the WLAN - something to do with the house fabric).
As to the D-Link units themselves - they get a good rating from Computer Shopper magazine. But I don't see UPA taking off until we start seeing UPA being offered in ADSL and Cable modems. Oh, and doing "piggyback" units (see the Solwise "Piggy" range) would be a darned good idea - not everyone has a spare mains socket that they can waste on one of these units.