Quotes from UniCredit Research:
-GBP: We believe today's expected weakening in UK retail sales growth will not put an end to the sterling rally that we have been seeing since the beginning of the month. A weaker number would largely be due to a technical correction following very strong growth in retail sales in 4Q14.
-In general, falling retail prices, an improving labor market and rising consumer confidence are boosting retail sales on a trend basis. We still like sterling and would expect any correction in GBP-USD to be minor and short-lived.