Boy! I started the ball rolling when I set up my initial request for extended Hobbins's to make contact. I can confirm that Hobbins is a comparitively rare surname in the UK. It was only after travel for the masses became easier that they spread far and wide from a their central England roots starting in the mid 18th century. The earliest Hobbins recorded by me is 1434; then all years since then. Amazingly ALL before the mid 18th century resided in Central England, between Stratford Upon Avon and Warwick then towards Birmingham. The villages of Barston, Ballsall Common, Catherine St Barne's, Barford and Leek Wootton being prominent as is Kenilworth, my home town. Please remember that our 17th century civil war (Cromwell vs King Charles I) overturned communities, many valuable parish and church records were destroyed.
It is because of this that my personal family tree seems to be stuck at 1754.
Back to the extended Hobbins's: All appear to originate in central England, only spreading further after the civil war and the coming of easier and safer travel. I agree with many contributors who say that it was almost certainly an English Hobbins with a military connection that started the Irish Hobbins clan during the 18th century (Red coats?) All agree that the name is VERY rare in Ireland. I conjecture that the Irish potato famine drove hundreds of families to emigrate. There are Hobbin's of Irish descent in Canada, the USA, Australia and New Zealand. I might be able to make links with my family tree if your branch of the Hobbins stems from the Warwickshire area.
I reccommend that we all keep information coming, from wherever in the World. I have made new friendships via this message board, you never know a valuable missing family link may be made.