I think I know Jomtien -but I don't!

[snotface]

In answer to the OP's questions:
1) Poseidon does a decent continental breakfast; good coffee in an area not famous for good coffee.
2) I think all the bars near the Venue are much of a muchness when it comes to drink prices.
3) My favourite Jomtien restaurants include Toto (good thin crust pizzas), Pan Pan (great minestrone and pasta), Indian by Nature (good Indian food in classy surroundings), Tinnies (pie and mash prepared by a friendly Australian who knows his stuff), Maggs (good English pub-style grub - a bit further away down Thepprasit but worth the hike), Poseidon (good spicy tomato soup and tender steaks), Dick's Cafe (reliable longstanding place for Thai food and international snacks). Yupins in the main gay soi has its loyal fans but it's not somewhere I eat after some disappointing meals.
4) Gay Romeo is good for the Pattaya area.