So recently me, and my friend XxLux_KittyxX (Here's her Enjoy Gram account if your interested in seeing her http://www.enjoygram.com/lux.kitty)
Were about getting ready to join each other in LBP 3 to help me with that final boss that is really hard to me in my opinion in LBP3. So when she invited me I got one of those messages saying "Come play with me on Little Big Planet, its super fun!" So I join her with the request sent, and I get this message "Proceed to the PlayStation store to continue", in other word's I'm assuming you need that Premium Membership (Golden Plus) to play with PS4 users on your PS3.

I was just curios will I be able to see when my friends are online, or off when they are no longer on because Lux Kitty is able to see when I am on, although I can't, so is that another feature with the latest updated Premium Membership comes in?

Also is there any way to bypass this problem (Not encounter it), without buying the PS4, or PlayStation membership? That's all I really wanted to know. Thanks :3.

Sorry, but it's not available to play online on PS3 with people on PS4 :/ Even if it's the same game, you can't. But I wonder why yet it ask you to join the membership of PS+, which is something that it cannot happen...

PS. If you do have access to your credit card or at least your parents', you can try a 14-day PS+ trial, which is free. If you have signed up to a PS+, plan a meeting with her. After she sends an invite, try to join. If it fails try again with the default costume. If it's still failing then most likely you're not able to join her She has actually a different system so I doubt you will play together:/

I'm not sure if this is why, but you need PS Plus to play online on PS4, so invites sent from the PS4 version of LBP3 might contain something that detects whether you have PS Plus or not and directs you to the PS Store to buy it if you don't. Whether you have PS Plus or not, you won't be able to join your PS4 friend.

But, I heard LBP3 for the PS4 has actually free online. That's weird.

Actually
http://www.trustedreviews.com/playstation-now-review This might be why the Free Online Mode might be happing to PS3 - PS4 users.
EDIT:
This may be why as well
http://www.trustedreviews.com/opinions/p...s3-games-on-ps4 If we have a cloud for all users in the US & Canada, then doesn't that mean it is possible?

PS Now is not released yet but I'm sure it's gonna be a big failure..... And Sony wants another cash.. I think it's not going to work with LBP 3 D: