So Garmin managed to 'accidentally' drop support for Language Guide in V4.80? Oh well, at least they stopped you breaking the law if your Zumo battery is being charged inefficiently in California. Now, that was an important update, much more so than ppl on the Continent and elsewhere being able to converse without a common language. [Gee but it's hard to convey sarcasm in the written word, isn't it? Or not]. What's really amusing is that they then did another update V4.90 on April Fool's Day and didn't fix the earlier cock-up ... Bazinga! From the changelog:

Change History
Changes made from version 4.80 to 4.90:

Added AVRCP capability to the Nav IV product.
Fixed an error with the connection to IPhone 4s.
Fixed a communication problem with LIN mounts.

Changes made from version 4.70 to 4.80:

Changed battery charging mode to comply with new California energy regulations.
Fixed an error that caused some SD cards to not be recognized.
Fixed an error that caused the device to shut down with highly-detailed 3rd-party maps.
Increased the length of a route that can be calculated in its entirety.

Gotta get your priorities right haven't you. Thank goodness we can all rest easy knowing that at least with V4.90 the Iphone 4s users no longer have any communication problems! [Yep! More scarcasm.]