I flew Turkish from IST-BOS a few weeks ago where the ban is already in place.
Turkish, along with the other ME carriers affected, are gate checking electronics and taking pretty good care of them. You basically hand over your electronics to an employee at the gate who writes down what you have on a slip with your name (they check passports), and places your electronics into thick bubble wrapped pouches, seals it with tamper-evident tape, sticks on something similar to a baggage tag, hands you a corresponding claim tag, and places it in a hard suitcase behind them. The bags are then locked and carried by employees from the gate to the hold (We watched them do this). When you land, you proceed to the baggage claim where there's a table and a few airline employees standing in front of the bags. You hand over your claim tag and passport and they give you your electronics back.
Obviously it's not at all ideal. I think the ban is absurd (and frankly, more dangerous than the threat of a terrorist having the newest MacBoom Pro onboard). It wasn't as bad as expected (especially since it allowed us to have our electronics on the first leg of the trip which was an 8 hour flight). It did, however, lengthen the boarding process. And while it definitely alleviated the issues/concerns I had with potential theft or data compromises, it doesn't do anything for business travelers who expect to use the time aboard productively.