Apple may launch its Iphone campaign in Europe with a 3G-capable iPhone with enhanced storage, according to what appears to be a leaked ad from T-Mobile Germany. The ad promises a version of the handset with support for 3G-level cellular internet access using both the US-friendly HSDPA format and typically Europe-only UMTS, with theoretical download speeds  reaching the format’s full 3.6Mbps. It also suggests that the device will carry 16GB of memory, representing the first storage upgrade to the device since its launch in June. The ad includes an error which references the device in one instance as an ipod, but otherwise appears to be consistent with T-Mobile’s advertising and may reflect a desire to return to two-tier pricing for the iPhone after the drop to $399 for the 8GB model, if proven accurate. The 3G iPhone would sell for 499 Euros ($687) including a coupon for the iTunes Stores , and would be available with phone plans that all offer unlimited data and vary only in terms of general calling minutes and SMS messages. An “L” plan would offer 200 minutes and 100 messages for 50 Euros ($69) per month; “XL” and “XXL” plans would jump to 300 and 400 minutes respectively for 60 Euros ($83) and 70 Euros ($96) per month with 150 and 200 messages each.