Anyone who buys a Klimaticket no later than the 30th of June can cancel it by the second month, rather than the sixth (with an additional month's penalty) as is usual. In effect this amounts to a two-month pass for the whole of Austria at ~EUR233 (lower if you qualify as a youth or senior) - certainly priced higher than most summer offers, but potentially still a very good deal. It's worth carefully reading the conditions so you don't get stuck in a year of validity you don't want.