These have generally been used by non-irish persons working in ireland. I don't think that in normal circumstances Irish citizens can avail of them in the same way.
This is because, normally, an irish citizen will be ordinarily tax resident here, thus he will be liable to tax on worldwide income, there are normally double tax arrangements in place with other countries to avoid double taxation.
I also seem to remember a change in the law in the last budget, which, did away with the remittance concept which is how these schemes work anyhow (maybe it was only talked about?).
Anyway, I don't remember the details, but I do remember looking at these schemes in the past and deciding that they were'nt an option for me. If you want to give some more specifics, then maybe I can be more specific with my answer.
Residence for tax purposes, industry sector, how much money do you plan to remit etc....