Personally, I like the idea of using Eos itself to do the Eos token sale. Launch an Eos chain with a smart contract to track payments (SPV should do it, if I'm not mistaken) to the token sale addresses on various other chains... allocate EOS tokens once enough confirmations are in on the foreign chain... It's relatively easy to support several chains, and people would be able to buy into the token sale on any platform.

Of course it's work, and takes time to implement, but I think it would yield a better result than trying to flood Ethereum, as fun as that would be. My approach might still crash Ethereum, since any eth holders who want to buy in would probably still do it on the Ethereum chain, but (1) non eth users won't have to buy eth to participate, and (2) non eth users won't have to pay insane fees to participate.

A technical question to answer is, who provides block headers and SPV proofs from the foreign chains to Eos? Well, I think anyone could. The point of blockchains is that we can track them without trusting the data sources.

Another important question is, how do we value the contributions on one chain as compared with another in EOS tokens? There's a lot of possibilities for this, it's just a matter of picking a sane one.

Overall, though, I think using Eos to do it's own token auction, even though it would push back the timeline, would be a more attractive strategy to investors, better marketing, and it would demonstrate the technology live.

On Ethereum alone, we should expect the Eos token sale to denial of service its own platform; does that sound like a good idea? Remember folks, an $85 fee wasn't enough to buy into STATUS. How high of a fee will be required to buy EOS?