Grand Theft Auto 4 is probably 6 months old now, but I've still not finished the game!
To cut a long story short (40+ hours of game time short), I've come across a glitch that a Google search showed many others have experienced too. The Final Interview mission requires that you meet up with Francis at the police station, who instructs you to get an interview at a local law firm. Once inside, you'll have to take down the interviewer. Sounds fairly simple, however it involves submitting your resume at the Internet Cafe (TW@T) and waiting for a phone call, which never arrives.
Tonight I attempted the mission for probably the 100th time, with many of my saves dating back to June with the same issue. I opted for a save from a previous mission, to see if that bypassed it. Once I submitted the resume and received the text message from the law firm, there was no phone call.
Reading through countless forum threads regarding the same glitch, the only way around it appears to be starting the game from scratch again - something I'm not fond of.
Instead, I'm tempted to trade the game in for Saints Row 2...