Am going phenom Phen monday, are tourist visas free there? (or in Laos yet?) I know the embassy is clossed wed, do they tale two days in PP?

One question: airasia didn't know is if i have to have a return ticket to enter cambodia, i'm not sure about my return day and would prefer to buy one way. Airasia charges 900B for change within 48 hours. Am Canadian.

Anything new in PP these days?

No visas have been free in April yet. One way ticket should be OK. Believe it is two days unless outside agent used (and probably not legal).

In Jan I had to pay $25 on arrival and 2 passport photo's for 25 men to each take their 4000 Reil for passing my passport down the line. Haven't heard news of a change in this process if you don't have a pre organised VISA. Note that not all nationalities are exempt from a pre oragnised VISA.

extension of stay permitted up to 26 April, means i can exit thai ON the 26? Or before?

Depends on the visa. If single entry can leave on 26th, but if (say) double entry tourist visa you would need to leave/re-enter the country the day before the VISA expires, not the permission to stay date, to activate second entry.