@Fractured Cell + Re: Quaint little Blighty
Fractured Cell:
Luton, Stansted, Gatwick and Heathrow all have channels that are marked "Channel Islands + Ireland" (which includes NI), which flights from well, the Channel Islands, Ireland, and Northern Irish flights go through. Just because the geniuses at the airport, who are incapable of following rules, put you in the same stream as the EasyJet pax from Spain (because it saves them having to open two separate channels), does not mean that it is supposed to be so.
Re: Quaint little Blighty:
Again, this has nothing to do with eBorders, but rather Great Britain's selective opt-out from the Schengen Treaty. Under the full Schengen Treaty, Britain would've had to close its borders in the same way that the Schengen countries (i.e. Germany, Netherlands, France, Belgium, Italy etc) have done.
Considering that at the time when the Schengen Treaty was signed, the Commonwealth was the largest community in the world that could travel with relative ease and lack of visa requirements (until the UK instituted visa requirements for certain Commonwealth countries like India, Pakistan, Sri Lanka and others in recent years), it was counter-productive for the UK to close its borders to its former colonies and territories in a fashion prescribed by the Schengen treaty. After all, the UK tried to foster a community spirit amongst Commonwealth nations, which included relatively unrestricted travel between nations in the Commonwealth.
So the UK opted out of the border control portions of the Schengen treaty (which has subsequently applied to most EU countries), and that means that we are still required to show our passports at EU borders. It may not make sense to those who believe that since we're all part of the big happy European family (i.e. the EU), we should not have any border issues, but it is a throwback to the early days.
Try as a non-EU/US/UK citizen to enter any of the Schengen countries, and you will find that unless the country you are a citizen of has a special relationship with said Schengen country, you will be ordered (invited in polite language) to provide proof that you're not planning to stay, that you have enough money to sustain your stay, and your home history, bank statements, letters of recommendation from your employer and from the people you are to visit, confirmed reservations (nevermind the fact that your visa application may be declined), AND an interview in person at the embassy/consulate of the country of first entry before they deign to give you even the indication of a possibility of a visa.
With eBorders, the borders to the UK are tightening up, and from what one hears from the corners of the former Empire, those countries whose citizens now need to apply for visas to the UK are now pretty much required to provide similar, if not identical information, to what Schengen countries require from non-Schengen/non-EU/non-US citizens. In effect, once eBorders becomes required for all Commonwealth countries (with exceptions to Ireland as a CTA signatory, Australia and NZ who've enjoyed a very good relaxed relationship with the UK), the UK can ratify the rest of the Schengen treaty and do away with the bothersome border between the EU and itself.
Not that I like eBorders, but there you are.