Notably, the 16GB iPhone is expected to remain at a cost of €499, and the new plans will at least tentatively end after June 30th. Munster recently said that in light of Apple's iPhone supply problems in New York, new evidence suggests that the issue is of a larger scale than initially thought. Gene Munster, senior analyst for Piper Jaffray recently called 20 Apple retail stores to confirm stock, and was met with the response that future shipments are uncertain. Munster estimates that the most likely reason for the shortage is the impending, but as of yet unconfirmed, upgrade to a 3G-based iPhone, with a slim chance of a manufacturing issue being a secondary explanation.