[daneyh]

Most equity/preferred shares are considered perpetuities (i.e as long as the company is in business)

There are many many perpetual bonds still being issued today however they tend to be 'callable' at the option of the issuer ...most after 5/10/30 years, if they aren't called then they maybe called on the same date every 5yrs or so (so I don't really count them as they aren't really 'forever'.

Oxford and Cambridge Universities in the UK have recently issued 100 year 'Century' bonds in GBP. Thats the longest i've seen recently (I cover EUR/GBP bond markets at work)