Samsung's dinkier S4 variant will be available to buy in the UK, starting next week. Phones 4U promises that it'll be posting its Galaxy S4 Mini preorders on Monday July 1st, while smaller phone sellers like Unlocked Mobiles and Handtec are promising to start sales this weekend. Launching priced at £420 in Phones 4U, it's arriving at a higher cost than last year's Galaxy S III, currently £400 on the s