First Class Mail International is NOT tracked in the UK.
You can check it out on
www.usps.com website under international mail.
It may not arrive for 2-3 weeks. As for it being too big for a letter - it doesn't literally mean a letter - that is just the term used for a certain size of package in the US. Just check out the USPS site. You will probably get a letter from customs asking you to pay tax as well - slowing it down even more.
UPS Express will reach you sooner... how fast? Maybe by Friday. You can track it all the way and it won't go through customs. UPS will clear it without it ever going near customs but they will ask you to pay before they deliver for tax.
I am stuck in that my ipad is in customs and it hasn't left the international depot. My guaranteed date of delivery was Thursday (today) and it isn't going to make that. I have read plenty of horrible threads online making me think my iPad is lost or stolen. Either way it is incredibly slow.
Good news is none of us have lost any money - PayPal and eBay have buyer protection and we can get the money back by opening a claim.
The annoying thing is none of us want the money - we want the iPad!
I intend on making a complaint on Thursday if it hasn't moved by lunchtime as there is no way it takes 2 days AFTER being cleared by customs to get from Coventry to Gatwick which is where my nearest parcel force depot is!
I have a horrible horrible feeling I will be pre-ordering with everyone else or lining up next Friday!
In the meantime everyone please make sure if you get an iPad off eBay it is either sent FedEx or UPS (or USPS Global Express Guaranteed which used FedEx but if you get a retard postal worker they may say that isn't available and you will get stuck with parcel force like me!).
Good Luck!